M4maths Previous Puzzles

05 Jan 2012 percentage

40% of (20% of 25 + 35% of 75 + 65% of 40) is

OPtion

1) 18.2
2) 19
3) 20.5
4) 21.3
5) 22.9
6) 23
7) 24.1
8) 25.9
9) 26
10) none of these

Solution

20% of 25 = 5
35% of 75 = 26.25
65% of 40 = 26
sum = 57.25
40% of 57.25 = 22.9

Correct Option: 5 Best Solution (0)

04 Jan 2012 cost

Total cost of 1 dozen banana, 1 Kg apple and 2 Kg orange is 145 rupee. If all rates are multiple of 5 and rate of 1 dozen banana and 1 Kg orange are same and more than 20 whereas that of 1 Kg apple is more than the cost of other 2 fruits then for the cost of 1 Kg apple total answers will be

OPtion

1) 1
2) 2
3) 3
4) 4
5) 5
6) 6
7) 7
8) 8
9) 9
10) none of these

Solution

Possible answers are 40, 55, 70

Correct Option: 3 Best Solution (4)

Shubham   13 years AGO

let cost of 1 dozen banana and 1kg orange is = 5x
and cost of 1kg apple is = 5y
then the equetion becomes
15x+5y=145 or 3x+y=29
given conditions are
1. 5x > 20 or x>4 (with this condition possible values of x are 5,6,7,8 and 9)
2. y>x (by adding this condition in the previous step the value of x can be 5,6 and 7)

hence the no of possible solution with these condition is 3

Like? Yes (10) | No (1)  

Rakesh Kumar Kohli   13 years AGO

Banana Oranges Apples Total
1 Dozen 2 Kg. 1 Kg.
Rs. 25 Rs. 50 Rs.75 Rs.145
Rs. 30 Rs. 60 Rs.55 Rs.145
Rs. 35 Rs. 70 Rs.40 Rs.145

Like? Yes (6) | No   

Datla Kanthi   13 years AGO

Possible cost for1 dozen Banana or 1kg Orange will be 25,30,35
and apple will be 70,55 and 40

so 3 possible answers

Like? Yes (2) | No   

mps gupta   13 years AGO

25
30
35
only these costs r posible

Like? Yes (2) | No   

03 Jan 2012 inequalities

x + y^2 = 17
17 > y + x^2 > 14
here x and y are real numbers greater than 1
then y-x will be

OPtion

1) more than 1
2) more than 2
3) less than 3
4) more than 5
5) more than 6
6) more than 7
7) equal to 6
8) equal to 7
9) equal to 8
10) none of these

Solution

According to the given condition
x + y^2 = 17
17 > y + x^2 > 14
so 17-17 < (x + y^2) - (y + x^2) < 17-14
so 0 < (y^2 - x^2) - (y - x) < 3
so 0 < (y-x)(y+x-1) < 3
so 0 < y-x < 3/(y+x-1)
so y-x will be less than 3

Correct Option: 3 Best Solution (3)

aman gupta   13 years AGO

subtracting the two given expressions we get
0 >(y-x)-(y-x)(y+x) >-3
0 >(y-x)[1-(y+x)] >-3
given that x and y are greater than 1 , so
y+x > 2
which implies
(y-x)[1-(y+x)]-3
this gives y-x

Like? Yes (3) | No   

P Sharath   13 years AGO

x+y^2=17 -------(1)
17 > y+x^2 >14 --(2)

eq (2)-(1)
0 > (y-x) + (x^2-y^2) > -3
=> 0 > (y-x) + (x-y)(x+y) >-3
taking y-x in common
=> 0 > (y-x)[1-(x+y)] >-3 ---(3)
dividing (3) by [1-(x+y)]
0 < (y-x) < -3/[1-(x+y)]
note: the sign changes because x and y are greater than 1 and quantity [1-(x+y)] is negative.

also as x and y are greater than 1 quantity
[1-(x+y)] < -1

hence the final equation is
0 < y-x < 3

Like? Yes (1) | No   

sridhar reddy   13 years AGO

given x and y are rational numbers greater than 1
and x+y^2=17...........(1)
and 14

Like? Yes (1) | No (2)  

02 Jan 2012 Next Number?

Next number of the sequence?
4,10,22,46,94,..?

OPtion

1) 120
2) 136
3) 160
4) 182
5) 190
6) 212
7) 222
8) 232
9) 262
10) none of these

Solution

4
2*(4+1) = 10
2*(10+1) = 22
similarly
2*(94+1) = 190

Correct Option: 5 Best Solution (48)

Dr.Dipin Singh   13 years AGO

4,10,22,46,94,..?
First number = 4
second number .4*2+2 =10
3rd number = 10*2 +2 =22
..

46*2+2=94
94*2+2= 190 ... option 5

Like? Yes (15) | No (5)  

mps gupta   13 years AGO

4*2+2=10
10*2+2=22
22*2+2=46
46*2+2=94
94*2+2=190
ok...........................

Like? Yes (11) | No (4)  

~Sandeep~   13 years AGO

Formula is n=(n-1)*2+4
Where 1st term is 4
So n = (94-1)*2 + 4 =190

Like? Yes (8) | No (3)  

Priyanka   13 years AGO

4x2+2 = 10
10x2+2 = 22
22x2+2 = 46
46x2+2 = 94
94x2+2 = 190.
So, the next number is 190.

Like? Yes (7) | No (2)  

pankaj prajapati    13 years AGO

next no=previous no*2 + 2.

Like? Yes (5) | No (3)  

Jyoti   13 years AGO

10-4=6
22-10=2*6=12
46-22=2*12=24
94-46=2*24=48
and so on...:)

Like? Yes (3) | No (1)  

Rajeev Kumar   13 years AGO

4
4+6*1=10
10+6*2=22
22+6*4=46
46+6*8=94
94+6*16=190
option is 5.

Like? Yes (4) | No (2)  

rajesh   13 years AGO

10-4=6
22-10=12
46-22=24
94-46=48
now next sequence is:48*2+94=190

Like? Yes (3) | No (1)  

Debashis Dey   13 years AGO

4
4+6=10
10+12=22
22+24=46
46+48=94
94+96=190 so option 5)

Like? Yes (3) | No (2)  

Rakesh kumar Gupta   13 years AGO

4+6=10
10+12=22
22+24=46
46+48=94
94+96=190

Like? Yes (3) | No (2)  

Bharathi   13 years AGO

4*2+2=10
10*2+2=22
22*2+2=46
46*2+2=94
94*2+2=190
so the answer s 5)190

Like? Yes (2) | No (1)  

karthik   13 years AGO

The series is following a logic 2x+2 where x is the preceding number.

Like? Yes (2) | No (1)  

Navneet Kaur   13 years AGO

bcz 10-4=6
22-10=12 i.e. 6*2
46-22=24 i.e. 12*2 n so on

Like? Yes (2) | No (1)  

laika goyal   13 years AGO

because this series contains 2*previous no. +2= next no.

example....
2*4+2=10
2*10+2=22
etc...

so 2*94+2=190

Like? Yes (2) | No (1)  

Sandeep Pandey   13 years AGO

2nd no. = (2*first no.) + 2
So after 94;
next no. = (2*94)+ 2 = 190

Like? Yes (2) | No (1)  

ANJALI TANEJA   13 years AGO

4+6=10
10+12=22
22+24=46
46+48=94
94+96=190

Like? Yes (2) | No (2)  

neena   13 years AGO

4*2+2=10
10*2+2=22
22*2+2=46
46*2+2=94
94*2+2=190

Like? Yes (2) | No (2)  

Y.Amulya chowdary   13 years AGO

first subtract the two 2numbers and then we get sequence is 6,12,24,48
this is in the form of 6*1,6*2,6*4,6*8 then we get 6*16 that is 96
so wet 96when we subtract 48 from the below options so the answer is 190

Like? Yes (1) | No (1)  

santhosh   13 years AGO

the next number is 94+160=190
option is 5
because
4
4+6(6*2^0)=10
10+12(6*2)=22
22+24(6*4)=46
46+48(6*8)=94
94+96(6*16)=190
option is 5

Like? Yes (1) | No (1)  

sabarish   13 years AGO

First number = 4

Rule is New number = preceeding number + next even number

Second number = first number + next even number
= 4 + 6 = 10
third number = 10+12 =22
fourth number = 22+24 = 46
fifth number = 46+48 =94

next number = 94+96 =190

So the answer is 190

Like? Yes (1) | No (1)  

HEMANT CHAURASIA   13 years AGO

according to given series...
4
4*2+2=10
10*2+2=22
22*2+2=46
46*2+2=94
therefore,
94*2+2=190..

Like? Yes (1) | No (1)  

rajendra   13 years AGO

10-4=6,22-10=12=6*2
46-22=24=12*2
94-46=48=24*2
next number will be 94+(48*2)=190

Like? Yes (1) | No (1)  

sridhar reddy   13 years AGO

4+6=10
10+12=22
22+24=46
46+48=94
94+96=190

Like? Yes (1) | No (1)  

SAURABH MEHTA   13 years AGO

4*2+2=10
10*2+2=22
22*2+2=46
46*2+2=94
94*2+2=190

Like? Yes (1) | No (1)  

Narendra Reddy   13 years AGO

190

4,4+6,10+12,22+24,46+48,94+96=4,10,22,46,94,190

Like? Yes (1) | No (2)  

sujitkumar jagtap   13 years AGO

calculate the difference between the conseucative nos. first difference is 6.....(i.e.10-4) next difference is 12.....(i.e.22-10)
next difference is 24.....(i.e.46-22)
next difference is 48.....(i.e.94-46)
next difference is 96.....(i.e.x-94)
calculate x. x-94=96.......x=190......option(5)

Like? Yes (1) | No (2)  

Balakumaran N.A   13 years AGO

4+6 = 10
10+12=22
22+24=46
46+48=94...
Sequence increases by 6,12,24,48,96...
so, 94+96=190.

Like? Yes (2) | No (3)  

Swetha.R   13 years AGO

The pattern of the given sequence is (n*2)+2.
Therefore the solution is 190(option 5)

Like? Yes (1) | No (2)  

Sudhish Surendran   13 years AGO

each number is incremented by twice of the previous difference
4, 4+6=10, 10+12=22, 22+24=46, 46+48=94, 94+96=190,...
so option 5 is correct

Like? Yes (1) | No (2)  

Darshan   13 years AGO

10-4=6
22-10=12
46-22=24
94-46=48
190-94=96

6,12,24,48,96....

Like? Yes (1) | No (2)  

animesh paul   13 years AGO

as the sequence is like 4,4*2+2,10*2+2,..

Like? Yes (1) | No (2)  

Sanjana Patnaik   13 years AGO

The series is:
4^2+2
10^2+2
22^2+2
46^2+2
Next is 94^2+2=190

Like? Yes (1) | No (2)  

Shubham   13 years AGO

4+6=10
10+12=22
22+24=46
46+48=94
94+96=190

Like? Yes (1) | No (2)  

kota mayuri   13 years AGO

difference between 4 and 10=6
4+6=10
10 and 22=12
10+12=22
22 and 46=24
22+24=46
46 and 94=48
46+48=94
each time the difference doubles so
next number is 96.
the final ans- 96+94=190

Like? Yes (1) | No (2)  

Mayur Upadhyay   13 years AGO

4+6=10+12=22+24=46+48=94+96=190

Like? Yes (1) | No (2)  

Selva Narayanan A J   13 years AGO

1 -> 4
2 -> 4*2 +2 = 10
3 -> 10*2 + 2 = 22
4 -> 22*2 + 2 = 46
5 -> 46*2 + 2 = 94
So the Next number will be,
6 -> 94*2 + 2 = 190

Like? Yes (1) | No (2)  

malli karjun   13 years AGO

it is very simple logic
i.e multily previous no with 2 and add 2 to every digit
last digit 94*2+2=190

Like? Yes (1) | No (2)  

Immanuel Pushpadhas   13 years AGO

The numbers are arranged in the series a*2+2 where a
is the previous number in the series

Like? Yes (1) | No (2)  

RAHUL KUMAR   13 years AGO

10-4=6
22-10=12
46-22=24
94-46=48
x-94=48*2
x=190

Like? Yes (1) | No (2)  

Gunaseelan   13 years AGO

4,4+6,10+12,22+24,46+48,94+96,190

Like? Yes (2) | No (3)  

gujjula deepak   13 years AGO

Ans is 190 bcoz, taking the difference of two numbers and multiplying with two

Like? Yes (1) | No (2)  

niket sinha   13 years AGO

add the difference between each numbers:
Number: Diff:
4,10 6
so 6+6=12
add 12 to 10: 12+10=22

last diff was 12, so add 12+12=24 to 22 which equals= 46

so on.....

Like? Yes (1) | No (2)  

dhivi   13 years AGO

10-4=6
22-10=12(6*2)
46-22=24(12*2)
94-46=48(24*2)
48*2=96
96+94=190

Like? Yes (1) | No (2)  

karthik bamala   13 years AGO

4*2+2=10
10*2+2=22
22*2+2=46
46*2+2=94
so the answer is....
94*2+2=190

Like? Yes (1) | No (2)  

Jeeva Karunanithy   13 years AGO

10-4=6
22-10=12
46-22=24
94-46=48
So next number should be 94 + 96 = 190

Like? Yes (1) | No (2)  

Piyush Agrawal   13 years AGO

4,(4*2)+2,(10*2)+2,(22*2)+2,(46*2)+2,(94*2)+2

Like? Yes (1) | No (3)  

shilpa   13 years AGO

10-4=6
22-10=12
46-22=24
94-46=48
?-94=96
ie ?=190

Like? Yes (1) | No (3)  

Milind kailas Narkhede   13 years AGO

the difference between first two adjacent term is 6..........
after than double the this term = difference between next two term ...........
find in this way

Like? Yes (1) | No (3)  

30 Dec 2011 sequence

next number of the sequence
16, 1256, 123656, 12349656, ....... will be

OPtion

1) 1234549656
2) 1235449556
3) 1234495656
4) 1234657556
5) 1234649656
6) 1233459676
7) 1234556856
8) 1234556686
9) 1224569566
10) none of these

Solution

This sequence is
16
1-25-6
1-2-36-5-6
1-2-3-49-6-5-6
1-2-3-4-64-9-6-5-6

Correct Option: 5 Best Solution (15)

Dr.Dipin Singh   13 years AGO

next number of the sequence
16, 1256, 123656, 12349656, ....... will be

5) 1234649656

Because
first number is 16 ..4^2
Next number is 1256 where 5^2=25 is written in between two digits of 16.
Next number is 123656 where 6^2=36 is written in middle of digits of 1256.

similarly next number ..
..
1234649656

Like? Yes (9) | No (2)  

DIVYA   13 years AGO

16
1256=1,5^2,6
123656=1,2,6^2,5,6
12349656=1,2,3,7^2,6,5,6
1234649656=1,2,3,4,8^2,9,6,5,6

Like? Yes (6) | No   

Rajeev Kumar   13 years AGO

4^2=16
5^2=25 in the middle i.e 1256 Acc. 2 the ques.
6^2=36 in the middle i.e 123656
7^2=49 in the middle i.e 12349656
8^2=64 in the middle i.e 1234649656
so option is 5.

Like? Yes (8) | No (6)  

sujitkumar jagtap   13 years AGO

first no. in the sequence is 16.........(4^2)
now for second no. take next square......(5^2)
i.e. 25 now insert 25 between 1 and 6 i.e.of previous no. so next no. will be
12 36 56 i.e.insert 36 between the recent square digits i.e. 2 and 5.now insert 49 between 3 and 6.so,123 49 656.. now finally insert 64 between 4 and 9..i.e.1234 64 9656......so option 5 is the correct answer.

Like? Yes (3) | No (3)  

Ganesan B   13 years AGO

16+9=25,so 1256,25+11=36,so it becomes as 123656...likewise,49+15=64,so it becomes as 1234649656..this is answer........

Like? Yes (2) | No (2)  

Anish Philip   13 years AGO

1234649656
25,36,49,64 comes at the core of every prev number

Like? Yes (1) | No (2)  

Shiv Kumar   13 years AGO

series is consisting of squares. Starting from 4.

Like? Yes (1) | No (2)  

Subhankar Mondal   13 years AGO

16,1(5^2)6=1256,12(6^2)56=123656,123(7^2)656=12349656,1234(8^2)9656=1234649656
so,ans=1234649656

Like? Yes (1) | No (2)  

sabarish   13 years AGO

first number = 16
second number is = 1(6-1)(6-1)6 = 1(5*5)6=1256
Third number is = 12(6*6)56 = 12(36)56 = 123656
Fourth number is = 123(7*7)656
= 123(49)656 = 12349656
next number is = 1234(8*8)9656 = 1234649656

Like? Yes (1) | No (2)  

Selva Narayanan A J   13 years AGO

16 = 4^2
1 5^2 6 = 1256
12 6^2 56 = 123656
123 7^2 656 = 12349656
So next number,
1234 8^2 9656 = 1234649656

Like? Yes (1) | No (2)  

sridhar reddy   13 years AGO

the square of a consecutive number is in the middle of the digits preceding the number
1(5^2)6=1256
12(6^2)56=123656
123(7^2)656=12349656
1234(8^2)9656=1234649656

Like? Yes (1) | No (2)  

Shubham   13 years AGO

inserting square of consecutive no.s in between.
like inserting 5^2 in 2nd term, 6^2 in 3rd and so on.
so we'll insert 8^2 in between the no to get next in that series

Like? Yes (1) | No (3)  

Bhimu withLove   13 years AGO

16 is 4*4 kept in middle so 0 - 14
25 is 5*5 kept in middle so 1 25 6 - 1256
36 is 6*6 kept in middle so 12 36 56 - 123656
49 is 7*7 kept in middle so 123 49 656 - 12349656
So Next sequence will be,
8*8 = 64 kept in middle so 1234 64 9656 - 1234649656

Like? Yes (1) | No (3)  

Hithesh Mohan I M   13 years AGO

each time, the square of the next number gets added in the middle.
here, first number is 16=4^2.
next number is 1(5^2)6=1256
next number is 12(6^2)56=123656
and so on....

Like? Yes (1) | No (3)  

ANJALI TANEJA   13 years AGO

The reason is that square of a number is added in between the digits.starting from 4 ^2, 5^2,..upto 8^2 in btw d digits.

Like? Yes (1) | No (3)  

29 Dec 2011 Length of the journey?

A car start with a velocity 20Km/Hour and after every hour its speed increases by 10Km/Hour. After 8 hour it starts decreasing the speed 10Km/Hour after every hour and finally it stops in the destination. Total length of the journey is?

OPtion

1) 700Km
2) 800Km
3) 850Km
4) 900Km
5) 950Km
6) 1000Km
7) 600Km
8) 1100Km
9) 1200Km
10) none of these

Solution

20+30+40+50+60+70+80+90+80+70+60+50+40+30+20+10 = 800Km

Correct Option: 2 Best Solution (9)

Bhimu withLove   13 years AGO

Car starts with speed 20km per

10 km/h increase in speed till 8 hours
20+30+40+50+60+70+80+90 = 440 Km

10 km/h Decrease in speed after 8 hours
80+70+60+50+40+30+20+10+0 = 360 Km

So answer is 440 + 360 = 800...

Like? Yes (7) | No (1)  

Mayur Somatkar   13 years AGO

totally from where it start after 8 hours it covers 440 KMs & after it slows down to stop it covers 360 KMs

therefore

440+360=800KMs

Like? Yes (2) | No   

vinodkumar   13 years AGO

20+30+40+50+60+70+80+90+80+70+60+50+40+30+20+10+0=800km

Like? Yes (1) | No   

Sadhana Gadre   13 years AGO

We have to just find the area under v-t graph

Like? Yes (1) | No   

Subhankar Mondal   13 years AGO

20+30+40+50+60+70+80+90+80+70+60+50+40+30+20+10+0=
800..........

Like? Yes (1) | No   

rajendra   13 years AGO

20+30+40+50+60+70+80+90+80+70+60+50+40+30+20+10=800

Like? Yes (1) | No   

Narendra Reddy   13 years AGO

800
20+30+40+50+60+70+80+90+80+70+60+50+40+30+20+10+0=800

Like? Yes (1) | No (1)  

Shubham   13 years AGO

20+30+40+50+60+70+80+90+80+70+60+50+40+30+20+10=800

Like? Yes (1) | No (1)  

Shiv Kumar   13 years AGO

20+30+40+50+60+70+80+90+80+70+60+50+40+20+10 =800

Like? Yes (1) | No (2)  

28 Dec 2011 dictionary

What will be the difference of the total words formed by using the letters of the word QUESTION and ANSWER separately.

OPtion

1) 39600
2) 28767
3) 23400
4) 38900
5) 40900
6) 43500
7) 89000
8) 21800
9) 37900
10) none of these

Solution

39600

Correct Option: 1 Best Solution (8)

Dr.Dipin Singh   13 years AGO

the difference of the total words formed by using the letters of the word QUESTION and ANSWER separately = 8! -6! = 6!(8*7-1) = 720*55 = 39600

Like? Yes (4) | No (2)  

Sudhish Surendran   13 years AGO

QUESTION = 8!
ANSWER = 6!
QUESTION - ANSWER = 8! - 6! = 39600
option 1 is correct

Like? Yes (1) | No (1)  

Bhimu withLove   13 years AGO

QUESTION - 8 letters, total words = n! = 40320
ANSWER - 6 letters, total words = n! = 720

difference = 40320 - 720 = 39600

Like? Yes (2) | No (2)  

dharmaveer   13 years AGO

no. of words can be formed by letters of QUESTION is: 8! = 40320

no. of words can be formed by letters of ANSWER is: 6! = 720

so, difference of the total words formed by using the letters of the word QUESTION and ANSWER

is 40320 - 720 = 39600

so, option 1 is correct answer

Like? Yes (1) | No (2)  

Debashis Dey   13 years AGO

no. of words formed by using letter 'QUESTION'=8!=40320 no. of words formed by using letter 'ANSWER'=6!=720
THEIR DIFFERENCE=39600

Like? Yes (1) | No (2)  

Swetha.R   13 years AGO

The number of words formed by using the letters of the word QUESTION= 8!=40320

The number of words formed by using the letters of the word ANSWER= 6!=720the difference of the

The total words formed by using the letters of the word QUESTION and ANSWER separately=40320-720=39600

Therefore the solution is option 1.

Like? Yes (1) | No (3)  

Amit Nathani   13 years AGO

8!-6!=39600

Like? Yes (1) | No (3)  

Narendra Reddy   13 years AGO

39600
total words formed by QUESTION is=8!
total words formed by ANSWER is=6!
diff is=40320-720=39600

Like? Yes (1) | No (3)  

27 Dec 2011 average

The average of first set of 6 numbers is 12, second set of 8 numbers is 14 and third set of 14 numbers is 10. Calculate the average of all the numbers

OPtion

1) 10.95
2) 10.99
3) 11.34
4) 11.57
5) 12.23
6) 12.89
7) 13.45
8) 13.95
9) 14.78
10) none of these

Solution

total sum = 6*12+8*14+14*10 = 72+112+140 = 324
so net average = 324/28 = 11.57

Correct Option: 4 Best Solution (31)

Bhimu withLove   13 years AGO

We know that
AM = N/n ---1*
where N is sum of all data(numbers),
N = AM*n ---2*
and sum of tree set of data will be
AM = (N1+N2+N3)/(n1+n2+n3) ---3*


given tree averages(mean) are

1) AM1 = 12, n1 = 6,
2) AM2 = 14, n2 = 8,
3) AM3 = 10, n3 = 14.

Now.
1) N1 = 12 * 6 = 72,
2) N2 = 14 * 8 = 112,
3) N3 = 10 * 14 = 140.

So, Average of all numbers is

AM = (N1+N2+N3)/(n1+n2+n3) = 324/28 = 11.57

Like? Yes (3) | No   

Rajeev Kumar   13 years AGO

6*12=72
8*14=112
14*10=140
72+112+140/28=11.57
option is 4.

Like? Yes (2) | No   

sabarish   13 years AGO

sum of first set 6 numbers is 12*6 = 72

sum of second set 8 numbers is 14*8 = 112

sum of third set 14 numbers is 14*10 = 140

total sum of 28 numbers is =(72+112+140) = 324

Average of 28 numbers is = 324/28 = 11.57

Like? Yes (2) | No   

Koushik Paul   13 years AGO

The sum of all numbers =(6*12)+(8*14)+(14*10)=324
The no. of the numbers=6+8+14=28
The avg. = (324/28)=11.57
So the right option is 4) 11.57

Like? Yes (2) | No   

Shubham   13 years AGO

(6*12 + 8*14 + 14*10)/(6+8+14)

Like? Yes (3) | No (2)  

susmit   13 years AGO

[(12*6)+(14*8)+(14*10)]/(6+8+10)=11.57

Like? Yes (1) | No   

~Sandeep~   13 years AGO

((6*12)+(8*14)+(14*10))/28 = 11.571 Option 4

Like? Yes (1) | No   

KALPANA G   13 years AGO

sum of first set=12*6=72
sum of second set=14*8=112
sum of third set=10*14=140
average of all the numbers=(72+112+140)/(6+8+14) = 324/28 = 11.57

Like? Yes (2) | No (1)  

Suresh Varma P   13 years AGO

Sum of all numbers from three sets = 72 + 112 + 140 = 324
Total numbers will be = 6 + 8 + 14 = 28

Average of all numbers = 324/28 = 11.57
Ans: option 4

Like? Yes (1) | No   

Narendra Reddy   13 years AGO

11.57
sum of 1st 6 nos=12*6=72
sum of2nd 8 nos=14*8=112
sum of2nd 14 nos=14*10=140
tot avg=(72+112+140)/28=11.57

Like? Yes (1) | No   

Swetha.R   13 years AGO

average of first 6 numbers =12
=>sum of first 6 numbers=12*6=72
average of second set of 8 numbers =14
=>sum of second set of 8 numbers=14*8=112
average of third set of 14 numbers =10
=>sum of third set of 14 numbers=10*14=140


From Given,
sum of all 28 numbers=72+112+140=324
therefore,average of all 28 numbers=324/28=11.57

Hence the solution is option 4.

Like? Yes (1) | No   

Lakshmi Paramasivan   13 years AGO

average/6=12,avg/8=14,avg/14=10, so sum of all numbers s 3324 ...averge s 324/28=11.57

Like? Yes (1) | No   

Mullaji Zubair Dawood   13 years AGO

total numbers=6+8+14=28
% of Each Series of nos. =21.43+28.57+50
Multiplying Each SEQUENCE avg. with Relevant %
=(0.2143*12)+(0.2857*14)+(0.5*10)
=2.57+4+5
=11.57 so Ans 4..

Like? Yes (1) | No   

rajendra   13 years AGO

avg=(6*12+8*14+14*10)/(6+8+14)=11.57

Like? Yes (1) | No   

renjith c g   13 years AGO

let average be x, y ,z
x/6=12;y/8=14;z/14=10;
so x=72;y=112;z=140;
so average of total= (x+y+z)/(6+8+14)=324/28= 11.57

Like? Yes (1) | No   

Gunaseelan   13 years AGO

Average= (6*12)+(8*14)+(14*10)/28
= 324/28
= 11.57

Like? Yes (1) | No   

Shatabhisa    13 years AGO

Sum of 6 nos.=6*12=72
Sum of 8 nos.=8*14=112
Sum of 14 nos.=14*10=140
The sum of 28 nos.=72+112+140=324
So the avg is =324/28=11.57

Like? Yes (1) | No   

ankit garg   13 years AGO

take first set to be consist of 12 6's
take second set to be consist of 14 8's
take third set to be consist of 10 14's

so 72+112+140=324

324/28=11.57

Like? Yes (1) | No   

Mayur Somatkar   13 years AGO

(6x12)+(8x14)+(14x10)=324

324/total of numbers.
i.e. 324/28=11.5712.

ANS.:- 11.57 (4)

Like? Yes (1) | No   

Sayantan Ghosh   13 years AGO

6*12=72
8*14=112
14*10=140
so total of 28 no.s is 324
average 324/28=11.57

Like? Yes (1) | No   

G.PHANIPAVAN   13 years AGO

(12*6)+8*14+14*10=324
average=sum of variables /no.of variables
=324/28

Like? Yes (1) | No   

CHIRRA SREEKER REDDY   13 years AGO

(6*12 + 8*14 + 14*10)/28=11.57

Like? Yes (1) | No   

sravani   13 years AGO

12*6=72
14*8=112
14*10=140
(72+112+140)/28=11.57

Like? Yes (1) | No   

Selva Narayanan A J   13 years AGO

First set total = 6*12 = 72
second Set Total = 8*14 = 112
Third Set Total = 140

So Total average = (72+112+140)/(6+8+14) = 324/28
= 11.57(Option 4)

Like? Yes (1) | No   

Bharathi   13 years AGO

(6*12)+(8*14)+(14*10)/(6+8+14)=11.57

Like? Yes (1) | No   

Sandeep Pandey   13 years AGO

AVERAGE(6) = 12 = (a1+a2+..+a6)/6
or a1+a2+...+a6 = 72
similarly for ;
AVERAGE (8) = 14
AVERAGE (14) = 10

so AVERAGE for all no is = (72+112+140)/28 = 11.571

Like? Yes (1) | No   

malli karjun   13 years AGO

numer avg total
first 6 12 (12*6)=72
second 8 14 (8*14)=112
third 14 10 (14*10)=140
------------------------------------
total 28 ? 324

then avg=324/28=11.57

Like? Yes (1) | No   

sivakumar   13 years AGO

the sum of all the numbers = (6*12)+(8*14)+(14*10)=324;
average is 324/(6+8+14) = 324/28=11.57;

Like? Yes (1) | No   

ANJALI TANEJA   13 years AGO

avg of all numbers set of 28 numbers= ((12*6)+(8*14)+(14*10))/28= 11.57 is the answer.

Like? Yes (1) | No   

SHILPA MOHANAN   13 years AGO

avg of first set=12 total of first set=12*6=72
avg of second set=14 total of second set=14*8=112
avg of third set=10 total of third set=10*14=140

grand total of (6+8+14)nos.=72+112+140=324
average of all nos.=324/(6+8+14)=11.57

Like? Yes (1) | No   

hina parveen   13 years AGO

12*6=72
8*14=112
14*10=140
avg=(72+112+140)/(6+8+14)=324/28=11.57

Like? Yes (1) | No   

26 Dec 2011 sequence

next number of the following sequence 14, 29, 60, 123, 250 will be

OPtion

1) 450
2) 590
3) 675
4) 744
5) 505
6) 645
7) 823
8) 499
9) 605
10) none of these

Solution

14*2+1 = 29
29*2+2 = 60
60*2+3 = 123
123*2+4 = 250
so next = 250*2+5 = 505

Correct Option: 5 Best Solution (36)

KALPANA G   13 years AGO

(14*2)+1=29
(29*2)+2=60
(60*2)+3=123
(123*2)+4=250
(250*2)+5=505

Like? Yes (4) | No (1)  

Dr.Dipin Singh   13 years AGO

14*2 +1 =29
29*2+1=60
60*2+3=123
123*2+4=250
250*2+5=505 .... option 5

Like? Yes (2) | No (1)  

Dimple   13 years AGO

nth term = (n-1)th term *2 + n-1

next term = 250*2 +6-1= 505

Like? Yes (2) | No (1)  

Vaibhav Natekar   13 years AGO

its in the sequence,
x=14
for i=1 to n
repeat x=(2*x)+i
i=i+1

Like? Yes (1) | No   

Pinaki Ranjan Bhakat   13 years AGO

14*2+1=29
29*2+2=60
60*2+3=123
123*2+4=250
so in this way 250*2+5=505
The ans is 505

Like? Yes (2) | No (1)  

Sandeep Pandey   13 years AGO

let x is the first no. nd y is 2nd no. den:
y=x+n
where; n=1,2,3...

so after 250
y= 250+5= 505

Like? Yes (1) | No   

Priyanka   13 years AGO

14 x 2 + 1 = 29
29 x 2 + 2 = 60
60 x 2 + 3 = 123
123 x 2 + 4 = 250
250 x 2 + 5 = 505
First number is multiplied by 2 and added by 1,then we get the next number. The next number is again multiplied by 2 and added by 2(+1 added),we get the third number.Similarly the process is continued.....

Like? Yes (1) | No   

jagadish   13 years AGO

2pow4-2, 2pow5-3, 2pow6-4, 2pow7-5, 2pow8-6, 2pow9-7

Like? Yes (1) | No   

Nivetha   13 years AGO

29-14=15, next difference no. is (15*2)+1 = 31,
next diff is (31*2)+1 = 63, (63*2)+1 =127, (127*2)+1 =255. so the last no. is 250+255=505.

Like? Yes (1) | No   

Rajeev Kumar   13 years AGO

solution is
14*2+1=29
29*2+2=60
60*2+3=123
123*2+4=250
250*2+5=505
therefore the next no. is 505
option (5).answer

Like? Yes (2) | No (1)  

santhosh   13 years AGO

ANSWER is 505 OPTION Is 5
because 14
14*2+1=29
29*2+2=60
60*3+3=123
123*2+4=250
250*2+5=505
there for answer is 505
option no..is 5

Like? Yes (1) | No   

pukit   13 years AGO

14,(14*2)+1=29,(29*2)+2=60,(60*2)+3=123,(123*2)+4=250.and the next no. will be (250*2)+5=505is the final answer so optopn 5 is the right answer

Like? Yes (1) | No   

Swetha.R   13 years AGO

(14*2)+1=29
(29*2)+2=60
(60*2)+3=123
(123*2)+4=250
(250*2)+5=505
therefore next number of the given sequence is 505.

Like? Yes (1) | No (1)  

Darshan   13 years AGO

14*2+1=29
29*2+2=60
60*2+3=123
123*2+4=250
250*2+5=505

Like? Yes (1) | No (1)  

Bhimu withLove   13 years AGO

sequence : 14, 29, 60, 123, 250, ???
a = 14
b = 29 and
dn = d(n-1) * 2 + 1
Tn= T(n-1) + dn
next number is = 250 + (127 * 2 +1) = 505

Like? Yes (1) | No (1)  

sonika thakur   13 years AGO

14 29 60 123 250 505
29-14=15 (15-14=1)
60-29=31 (31-29=2)
123-60=63 (63-60=3)
250-123=127 ( 127-123=4)
then
505-250=255 (255-250=5)

Like? Yes (1) | No (1)  

Libin M Ali   13 years AGO

(14x2)+1 =29
(29x2)+2 =60
(60x2)+3 =123
(123x2)+4=250
similarly (250x2)+5= 505

Like? Yes (1) | No (1)  

satish kumar   13 years AGO

14 * 2 + 1 = 29
29 * 2 + 2 = 60
60 * 2 + 3 = 123
123 * 2 + 4 = 250

So in same way 250 * 2 + 5 = 505

Like? Yes (1) | No (1)  

Gunaseelan   13 years AGO

Series 14,(14*2)+1,(29*2)+2,(60*2)+3,(123*2)+4,(250*2)+5=505

Like? Yes (1) | No (1)  

visheshkothari   13 years AGO

14
(14*2)+1=29
(29*2)+2=60
(60*2)+3=123
(123*2)+4=250
(250*2)+5=505

Like? Yes (1) | No (1)  

Monica Maibram   13 years AGO

14*2+1=29
29*2+2=60
60*2+3=123
123*2+4=250
250*2+5=505
so,ans is 505

Like? Yes (1) | No (1)  

priya k   13 years AGO

7+7+0=14
14+14+1=29
29+29+2=60
60+60+3=123
123+123+4=250
250+250+5=505

Like? Yes (1) | No (1)  

SHILPA MOHANAN   13 years AGO

14*2+1=29
29*2+2=60
60*2+3=123
123*2+4=250
250*2+5=505

Like? Yes (1) | No (1)  

selva krishnan   13 years AGO

2^4-2=(16-2)= 14
2^5-3=(32-3)= 29
2^6-4=(64-4)= 60
2^7-5=(128-5)=123
2^8-6=(256-6)=250
2^9-7=(512-7)=505(Answer)

Like? Yes (1) | No (1)  

neena   13 years AGO

14*2=28+1
29*2+2
60*2+3
123*2+4
250*2+5 =505

Like? Yes (1) | No (1)  

susmit   13 years AGO

2(xth no.)+x=(x+1)st no.
so 6th no. is 2(250)+5= 505

Like? Yes (1) | No (1)  

Selva Narayanan A J   13 years AGO

14*2+1=29
29*2+2=60
60*2+3=123
123*2+4=250
250*2+5=505

Like? Yes (1) | No (1)  

Uma Zanwar   13 years AGO

14*2+1=29
29*2+2=60
60*2+3=123
123*2+4=250
250*2+5=505

Like? Yes (1) | No (1)  

Rohit kumar   13 years AGO

its simple ..... just double and add one extra to previous

Like? Yes (1) | No (1)  

malli karjun   13 years AGO

first no=14
second no=14*2+1=29
Third no=29*2+2=60
fourth no=60*2+3=123
fourth no=123*2+4=250
fifth no=250*2+5=505

Like? Yes (1) | No (1)  

samanvitha   13 years AGO

(14x2)+1=29 (29+1)x2=60
(60x2)+3=123 (123+2)*2=250
(250*2)+5=505

Like? Yes (1) | No (1)  

sabarish   13 years AGO

Given Series 14,29,60,123,250 ?

formula as follows 2*first number + 1
2*second number + 2
and so on
Now

second number is 2*14+1 = 29
third number is 2*29+2 =60
fourth number is 2*60+3 =123
fifth number is 2*123+4 =250
sixth number is 2*250+5 =505

there fore the number is 505

Like? Yes (1) | No (1)  

Sayantan Ghosh   13 years AGO

29-14=15
60-29=31=(15*2)+1
123-60=63=(31*2)+1
250-123=127=(63*2)+1
So,(127*2)+1+250=505

Like? Yes (1) | No (1)  

Vivek Yadav   13 years AGO

it make a sequence of 15 31 63 127.
means 31=15*2+1
63=31*2+1
and so on so....
so next term will be 127*2+1=255.
it will be add in 250.
so next number will be 250+255=505.

Like? Yes (1) | No (1)  

Narendra Reddy   13 years AGO

505
14,14*2+1,29*2+2,60*2+3,123*2+4,250*2+5
=14,29,60,123,250,505
Every time it will double and increase by 1,2,3...
so ans is 505

Like? Yes (1) | No (2)  

Puran Tomar   13 years AGO

Because
14->14
2*14+1->29
2*29+2->60
2*60+3->123
2*123+4->250
Then Next Term Will Be
2*250+5->505

Like? Yes (1) | No (2)  

23 Dec 2011 business

A business has two steps. In first step, there is 40 % profit in total investment and in second step, there is 12 % loss in the total output after first step. Overall percentage profit in the initial investment will be

OPtion

1) 23.2
2) 24.4
3) 25
4) 25.8
5) 26.2
6) 27.4
7) 27.8
8) 29
9) 32.4
10) none of these

Solution

after first step output = x*1.4
after second step output = x*1.4*0.88 = 1.232*x
so profit percentage = 0.232*x*100/x = 23.2

Correct Option: 1 Best Solution (11)

Shiv Kumar   13 years AGO

lets asume 100 is the investment Amount.
First Step is there is 40 % profit in total investment. means the total amount now will be 140.

second step, there is 12 % loss in the total output after first step means 12% on 140 comes to 16.8. Left amount is 123.2.
Profit is 23.2 from the invetment of 100. Percentage is 23.2

Like? Yes (9) | No   

Anish Philip   13 years AGO

let x be the initial investment
i) 40%profit = 1.4*x
ii) 12%loss = 0.88*(1.4*x) = 1.232*x
net profit = 100(1.232 - 1) = 23.2%

Like? Yes (2) | No   

Bhimu withLove   13 years AGO

Assume that we invested(Capital) Rs 200 at the beginning.
First step 40% profit (200*40/100) Rs 80
Now total amount at the beginning of second step
200 + 80 = 280
Now in second step 12% loss (280*12/100) Rs 33.6
remaining Amount : 280 - 33.6 = 246.4
Initial capital : 200
Overall profit : 246.4 - 200 = 46.4
Overall profit in Percent
(100 * Overall Profit / Initial Capital) =
100 * 46.4 / 200 = 23.2

Like? Yes (2) | No   

Selva Narayanan A J   13 years AGO

In first step, 40%profit,
So lets consider, person invested Rs.100.
Output of first is Rs.140
In 2nd step 12% loss = 12% of 140 = Rs. 16.8
So total profit = Rs.123.2 out of Rs.100.
So profit is 23.2%

Like? Yes (2) | No   

Shubham   13 years AGO

(1.40 * 0.88 - 1)100 = 23.2%

Like? Yes (1) | No   

brajabanshi sahu   13 years AGO

after 40% profit n 12% is 16.8 after excluding it total profit is 23.2

Like? Yes (1) | No   

viswamraju   13 years AGO

let initial amount is x,after first step total is 1.4x after 2 nd step 1.4x-(1.4*0.12x).result is 1.232x so 23.2% profit

Like? Yes (1) | No   

selva krishnan   13 years AGO

Let assume First investment is =100;
then 40% profit and after First step =140;
then total investment after first step =140;
and 12% loss from 140;
then 140-12%(140)=140-16.8=123.20;
so initial investment is 100 then the overall profit is 23.2%.

Answer is:23.2

Like? Yes (1) | No   

ar   13 years AGO

after 1st step output for 100 rs investment = 140 rs
now for 12 % loss on that = 12 % of 140 = 16.8 rs
hence total profit = 140-16.8-100 = 23.2

Like? Yes (1) | No   

Narendra Reddy   13 years AGO

23.2
let investment be 100
1st step 40% profit means total is 140
after this in 2nd step 20 loss=140-([140*12]/100)=123.2
total profit=123.2-100=23.2

Like? Yes (1) | No   

malli karjun   13 years AGO

please take initial business start with 100 then after first step 40%profit then become 140 , 12 % loss means then 16.8 will subtract from the 140 then 123.2 means 23.2 is profit

Like? Yes (1) | No