Public Profile Page:

Dimple

India

Punjab

Time: 00:01:33

Points

Maths Quotes

Round numbers are always false.

Samuel Johnson

Infinity is a floorless room without walls or ceiling.

Unknown

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 4 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

yash mittal 5 years ago

Public Wall |

(9 years ago) "Other"

The sum of four consecutive two digit odd numbers , when divided by 10, becomes a perfect square. Which of the following can possibly be one of these four numbers?

Reply Like? Yes | No

(9 years ago) "Other"

In this question A^ B means A raised to the power B. If f(x) = ax^4-bx^2+x+5
F(-6) = 1
Then f(6) = ?

plzz tell me whether the ans is 13 or not ??

Reply Like? Yes | No

(9 years ago) "Other"

hello....i am writing to express my interest about android training program so what is the next step.

Reply Like? Yes (1) | No

(9 years ago) "Other"

please explain .

divide 1/18 in the ratio 2:1 .

ans; 1/18*2/3.. please explain how ?

Reply Like? Yes | No (1)

(9 years ago) "Other"

2. An individual runs 5 km towards the west, then 10 km towards the south then 15 km towards the west, then 30 km towards the north then 25 km towards the cast and finally 20 km towards the south straightly. How far will he be from his starting point and in which direction?

Reply Like? Yes | No

(9 years ago)

5 km. towards east

Like? Yes | No

(9 years ago) "Other"

8432: 7
9213: 0
5144: 16
9064: 9
7103: ??
Crack this with logic....

Reply Like? Yes (29) | No (3)

(9 years ago) "Other"

A boat takes a circular route to travel a total distance of 24km to reach its initial position. the speed of the boat in still water is 5km/hr and the speed of the stream is 3km/hr.how much time does the boat travels upstream and downstream respectively? please how to solve this fnds? plz say soon

Reply Like? Yes | No

(9 years ago) "Other"

A dividend of rs.504 lakhs for shares was announced by a company.100 employees cum share holders get rs.3.60 lakhs each and the share holders who is not the employee gets rs.2.40lakhs each. how many shareholders are there who are not employees? how to solve this questions if anyone knows please reply my id is tsaraswathy@ymail.com plz rply asasp

Reply Like? Yes | No

(9 years ago)

3.60*100 + 2.40*x=504
360+2.40x=504
2.40x=144
x=144/2.40
x=60

Like? Yes | No

(9 years ago) "Other"

If (x+y)/(x−y)=4/3 and x ≠ 0, then what percentage (to the nearest integer) of x + 3y is
x – 3y ?

Reply Like? Yes | No

(9 years ago) "Other"

The radius of a cone is times the height of the cone. A cube of of maximum possible volume is cut from the same cone. What is the ratio of the volume of the the cone to the volume of the cube?

Reply Like? Yes (1) | No

to (9 years ago) "Other"

chossss!!!!!!

njknkjnkjn

Reply Like? Yes | No

(9 years ago) "Other"

Data suficiency
what is the value of x? data suficiency
(1)x^2+1=1/(x^2+1)
(2)x^3+X^2=0

Reply Like? Yes | No

(9 years ago) "Other"

36) What are the last two digits of expression 5306^214 ?

Reply Like? Yes | No (1)

(9 years ago)

5306^214 = (5300+ 6)^214
If you work out the binomial expansion every term will have atleast 2 zeroes in the end except 6^214.

Last two digits of (5300+ 6)^214= Last two digits of 6^214

6^214 = 2^214 * 3^214

2^214 = 2^(10*21+4)
= (1024)^21 * 2^4
= (24)^21 * 2^4
=24^odd * 2^4
=24* 16 [ 24 to the odd power is always 24 and even power is always 76]
=84

3^214 = 3^(4*53+2)
= (81)^53 * 09
= 41 * 9
=69

Last two digits of 6^214 = 84*69= 96
-----------------

Alternatively, you can observe the pattern of 6^n [ where n=1,2,3,4 and so on]

The last two digits of the pattern 06, 36, 16, 96, 76, 56, 36, 16, 96, 76, 56 ....
[Only first power gives 06, all others are repetitive after every 5 numbers. If you could remove first power, you would see a

repeatition of numbers].

First thing to do is to subtract one from 214 power. Now, we need to get the remainder when we divide 213 by 5. Remainder is 3.
Thus, last two digits will be 3rd in the repeating pattern ie. 96.

Like? Yes | No

(9 years ago)

Hope you understood the two methods!

Thanks,
onlinepsa.in

Like? Yes | No

to (9 years ago) "Other"

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn i l baby

Reply Like? Yes | No

(9 years ago) "Other"

Data on 450 candidates,who took an examination in social science,mathematics and science

Passed in all subjects 167
Failed in all subjects 60
Failed in social science 175
Failed in mathematics 199
Failed in science 191
Passed in social science only 62
Passed in mathematics only 48
Passed in science only 52

How many failed in social science only
How many failed in one subject only
How many passed in mathematics and at least one more subjects
How many failed in two subjects only
How many passed at least in one subject

Reply Like? Yes (237) | No (22)

(9 years ago)

sry for mistake in previous ans
this is correct one---
How many failed in social science only = 115
How many failed in one subject only = 21+25+15 = 61
How many passed in mathematics and at least one more subjects = 21+167+15 = 205
How many failed in two subjects only = 62+48+52 = 162
How many passed at least in one subject = 450-60 = 390

Like? Yes (165) | No (80)

(8 years ago)

send ans /..............................

Like? Yes (15) | No (5)

(9 years ago) "Other"

a women can do a piece of work in 50 days in how many days will the one third of women be able to finish two third of the work.. if any one know the answer reply me in jenita464@gmail.com

Reply Like? Yes | No

(9 years ago)

100 days

1 woman ----- 1 work ---- 50 days
1/3 woman---- 1 work ---- 50*3=150 days
1/3 woman---- 2/3 work--- 150*2/3=100 days

Like? Yes | No

(9 years ago) "Other"

what is the largest number that is expressed with 3 numerical figures?

Reply Like? Yes | No

(9 years ago) "Other"

4) 5__6. What operator should be placed in between these two such that the result: 5

Reply Like? Yes (1) | No

(9 years ago) "Other"

|x|+|y|=7 what is the sum of minimum and maximum values of x and y?

Reply Like? Yes | No

(9 years ago)

6 +8 = 14
because of maximum and minimum value

Like? Yes (1) | No

(9 years ago) "Other"

Reply Like? Yes (15) | No (3)

(9 years ago)

ans for this pls

Like? Yes (1) | No

(9 years ago)

As we know the formula for
speed of upstream = (u-v)
speed of downstream = (u+v)

Solution :-
Speed of upstream = (5-3) = 2 km/hr
Speed of downstream = (5+3) = 8km/hr

As they asked about time of travel:-
total distance / speed of upstream = 24km / 2km/hr = 12hrs
total distance / speed of downstream = 24km / 8km/hr = 3hrs

Ans= 12,3

Like? Yes (8) | No

(9 years ago)

downstream =12/5+3=3/2=1&1/2hr
upstream=12/5-3=6 hr

Like? Yes (2) | No (1)

(9 years ago)

speed in still water=(d+u)/2 =5
speed of stream=(d-u)/2 =3
then, u=4 & d=6
no total distance trvelled =24
so, tym taken to travel upstream12/4=3 hrs
& tym taken to travel downstream=12/6=2hrs

Like? Yes (2) | No

(9 years ago) "Other"

Reply Like? Yes (1) | No

(9 years ago) "Other"

how many 5 digits no can be formed using 0,1,2,4,6,8 which is divisible by 4? asked in infosys

Reply Like? Yes | No

(9 years ago)

total possible last 2 digits with no. of possible no. can b formed are
20 -- 24
40 -- 24
60 -- 24
80 -- 24
04 -- 24
08 -- 24
12 -- 18
16 -- 18
24 -- 18
62 -- 18
28 -- 18
64 -- 18
48 -- 18
84 -- 18
68 -- 18
adding all--
306
which is the ans

Like? Yes | No

(9 years ago) "Other"

how many 5 digits no can be formed using 0,1,2,4,6,8 which is divisible by 4?

Reply Like? Yes | No

(9 years ago) "Other"

What is the unit digit of 7777^3333-3333^7777, give the answer with the explanation

Reply Like? Yes | No

(9 years ago) "Other"

Ques. If the sum of two numbers is 55 and the H.C.F. and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:
Op 1: 55/601
Op 2: 601/55
Op 3: 11/120
Op 4: 120/11

Reply Like? Yes | No

(9 years ago)

answer is 11/120,
method : product of two numbers = HCFxLCM, so given x+y=55=>x and 55-x are two numbers
x(55-x)=120x5 => x^2-55x+600=0 so after solving u get x=40 and y=15 or x=15 and y=40 either way u get the reciprocal sum as 11/120

Like? Yes (1) | No

(9 years ago) "Other"

Reply Like? Yes | No

(9 years ago) "Other"

In a city there are few engineering, MBA and CA candidates. Sum of four times the engineering, three times the MBA and 5 times CA candidates is 3650. Also three times CA is equal to two times MBA and three times engineering is equal to two times CA. In total how many MBA candidates are there in the city?

Reply Like? Yes | No

(9 years ago)

16/9mba+3mba+10/3mba=3650
mba=450

Like? Yes | No

(9 years ago) "Other"

From a square of side 2 cm, equal triangles are cut from its corners to form a regular octagon. We will get an octagon. What is the area of that octagon?

Reply Like? Yes | No

(9 years ago) "Other"

77!*(77!-2*54!)^3/(77!+54!)^3 + 54!*(2*77!-54!)^3/(77!+54!)^3

Reply Like? Yes | No

(9 years ago) "Other"

70 students are required to paint a picture. 52 use green color and some children use red, 38 students use both the colors. How many students use red color?

Reply Like? Yes | No

(9 years ago)

ans will be
90-70=20

Like? Yes (2) | No

(9 years ago) "Other"

Find the probability that a year chosen at rendom has 53 Mondays.
A) 5/28
B) 3/28
C) 1/28
D) 3/28

Reply Like? Yes | No

to (9 years ago) "Other"

plz send me some question paper of infosys
my email id-behera.rajalaxmi@gmail.com
infosys is coming on 10 th sept..plz plz

Reply Like? Yes | No

(9 years ago) "Other"

2. How many 5 digit no. can be formed wit digits 1, 2, 3, 4, 5, 6 which are divisible by 4 and digits not repeated

Reply Like? Yes | No

(9 years ago) "Other"

hai friends good morning!

Reply Like? Yes | No

(9 years ago) "Other"

While selling a watch, a shopkeeper gives a discount of 15%. If he gives a discount of 20%, he earns Rs. 51 less as profit. What is the original price of the watch?

Reply Like? Yes | No

(9 years ago)

orginal price of watch is 1020

Like? Yes | No

(9 years ago)

1020

If marked price or original price=x, then [x*(100-15)/100] - [x*(100-20)/100]= 51 or
0.85x- 0.8x=51 , 0.05x=51, x=1020

Like? Yes | No

to (9 years ago) "Other"

how many no can be formed using digits (1,2,3,4,5,6,7,8,9)..such that they are in increasing order(eg:0 12345,345,6789,123456789)???

Reply Like? Yes | No

(9 years ago)

0,1,12,123,1234,12345,123456,1234567,12345678,123456789,23,234,2345,23456,234567,2345678,23456789,34,345,3456,34567,345678,3456789,45,456,4567.45678,456789,56,567,5678,56789,67,678,6789,78,789,89,2,3,4,5,6,7,8,9.......................... 46no

Like? Yes (1) | No

(9 years ago)

single digits cant be cosidered in inc order
1+2+3+.........+8 = 36

Like? Yes | No

to (9 years ago) "Other"

A deck of 5 cards (each carrying a distinct number from 1 to 5) is shuffled thoroughly. Two cards are then removed one at time from the deck. What is the probability that the two cards are selected with the number on the first card being one higher than the number on the second card?

Reply Like? Yes | No

(9 years ago)

n(s) =5*4
n(e)= {(2,1),(3,2),(4,3),(5,4)} = 4
p = 1/5

Like? Yes | No

to (9 years ago) "Other"

You have 3bags each containing two marbles.bag A contain 2 white marbles , bag B contaion 2 black marbles,bag C contains one white marble and one block marble. You pick a random bag and take out one marble.it is a white marble.probability that the remaining marble from the same bag is also white ?

Reply Like? Yes | No

(9 years ago)

bag can be A or C
1st is white so 2nd can be w/b so p =1/2

Like? Yes | No

to (9 years ago) "Other"

Abhishek and Aishwarya picked up a ball at random from a bag of M red colour and N yellow coloured balls,one after the another, replacing the ball every time till one of them gets a red ball.The first one to get a red ball is declared as a winner.IF Abhishek wins the game and odds in favour of his winning the game is 3/2 find the ratio of M/N
A)1:1
B)1:2
C)2:3
D)3:2

Reply Like? Yes | No

to (9 years ago) "Other"

1/a - 1/b = 1/c where a,b,c are single digit number and b > a . Then we have to find how many values are possible for a,b,c as per the given conditions..?

Reply Like? Yes | No

(9 years ago)

if a.b, c are distinct then
a=bc/(b+c)
two soln (2,3,6)&(2,6,3)

Like? Yes | No

to (9 years ago) "Other"

assertion reasoning question
ques 1 is x integer
1) x/2 is integer
2) 2x is integer

ques 2 there are three consecutive prime number p,q,r, such that q-p=2 what is the value of r
1)their median is the average of 3 prime number .
2) sum is 15

Reply Like? Yes | No

(9 years ago)

1) only 1 is suffice
x must be even integer.
2x=5 then x not integr.

2) either suffice
must be 3,5,7

Like? Yes | No

to (9 years ago) "Other"

Three numbers A,B,C are such that the difference between the highest and the second highest two-digit numbers formed by using two of A,B and C is 5.Also ,the smallest two two-digit numbers differ by 2.If B>A>C then what is the value of B?

(a)1 (b)6 (c)7 (d)8

Reply Like? Yes | No

(9 years ago)

BA-BC=5 => A-C=5
CB-CA=2 => B-A=2
adding weget, B-C = 7 => B > 7
from options B= 8 is possible.

Like? Yes | No

to (9 years ago) "Other"

How many 4 digit numbers can be formed using digits 0,1,2,3,4,5, such that number is divisible by 8??

Reply Like? Yes | No

to (9 years ago) "Other"

There is a circular table. It has 60 chairs. Drakula came and sit on a chair beside another person. What is the minimum no. of person will be so, that wherever he sits he always gets to sit beside a person

Options: 30, 20, 15, 10

Reply Like? Yes | No

(9 years ago)

if thre r 6 chairs then
m _ _ m _ or _m_ _ m _ etc in each case mimn number of men = 6/3 = 2

for 60 chairs 60/3 = 20

Like? Yes (1) | No

to (9 years ago) "Other"

A lady bought five books namely A,B,C,D,E to distribute her 3 child. How many ways she can distribute books?

Reply Like? Yes | No

(9 years ago)

60

With A,B combinations C or D or E are possible, with A,C combinations B or D or E are possible, with A,D combinations B or C or E are possible, with A,E combinations B or C or D are possible
So total 12 combinations for A are possible for selecting 3 among 5 like (A,B,C), (A,B,D), (A,B,E), (A,C,B), (A,C,D), (A,C,E), (A,D,B), (A,D,C), (A,D,E), (A,E,B), (A,E,C), (A,E,D)
Similar 12 combinations are possible for remaining 4
So total ways=5*12=60

Like? Yes (2) | No

to (9 years ago) "Other"

P is an even number (I think greater than 2 it was given). e is the probability of number of even numbers divisible by p, o is the probability of number of odd number divisible by p and w is the probability of number of whole numbers divisible by p. Then which equation satisfies.
1. w=2 e
2. w=e/2
3. w=o/2
4. not remember

Reply Like? Yes | No

(9 years ago)

p = ???
odd num cant be divid y even so o =0

Like? Yes | No

to (9 years ago) "Other"

ABC is a right-angle triangle with sides R1, R2 and R3 such that no sides are even simultaneously. If 102 is added to all sides and then squared we get S1, S2, S3 (Sn=square of (Rn+102)). If T= S1+S2+S3.
Then, which is always true for T.
1. divisible by 2 but not by 4
2. divisible by 4 not by 8
3. divisible by 8 not by 4
4. none of the above

Reply Like? Yes | No

(9 years ago)

as given condn 2 of R1, R2 and R3 will be odd nos
consider tr (3,4,5)
then T = (3+102)^2 + (4+102)^2 + (5+102)^2
= (3^2+4^2+5^2)+ 3*102^2 + 2*102*(3+4+5)
its clear that
T is always divisible by 2 but not by 4

Like? Yes (1) | No

(9 years ago) "Other"

A dividend rs 504 lakhs for shares was announced by a company 100 employee cum shareholders get rs 3.60 lakhs each and the share holder who is not the employee gets rs 2.40 lakhs each how many share holders are there who are not employees

Reply Like? Yes (13) | No

(9 years ago) "Other"

Find the odd man out:
2,8,20,44,83

Reply Like? Yes | No

(9 years ago)

83 ------------------------------------

Like? Yes | No

(9 years ago)

2 , 2*2+4 ,8*2+4 , 20*2+4 , 44*2+4=92 so 83 is wrong

Like? Yes | No

to (9 years ago) "Other"

2 and 2014 r not co prime so ur solution is wrong

Reply Like? Yes | No

Pages - 237

First prev 67 68 69 70 71 72 73 74 75 76 Next Last

Comment Per Page 50 100

Sponsored Links

Challenger of the Day

Maths Quotes

Placed User Comments

Public Wall |

Site Links

Useful Info

Placement papers