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Dimple

India

Punjab

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Maths Quotes

Mathematics is like a rain... When we know how to solve it, We will continouosly do it.

Syawal

THE ESSENCE OF MATHEMATICS IS NOT TO MAKE SIMPLE THINGS DIFFICULT BUT TO MAKE DIFFICULT THINGS SIMPLE.

anne.11

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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

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to (9 years ago) "Other"

Listen, dont comment on any answer as you are always wrong

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(9 years ago) "Other"

This is the best place to get idea about any exam pattern and very helpful for preparation. M4maths rocks !! :)

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to (9 years ago) "Other"

Hello Arnab,will it be sufficient fo me to crack TCS aptitude test if I go through all the given TCS placement questions on m4maths and campusgate?

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(9 years ago)

yes sure... . but dont just memorize the answers do solve them at least....

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(9 years ago)

i want cts apptitude pls tel me

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to (9 years ago) "Other"

IF U HAVE CTS PATTERN QUESTION MEAN PLS SEND ME...THIS WEEK I HAVE CTS PLACEMENTS PLS

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(9 years ago) "Other"

Export of Engineering Goods from India

(in Rs. Crore)
Year Total Exports Engineering Goods exported
1996 5143 552
1997 5404 624
1998 5426 717
1999 5999 653

8. What percentage of total exports were Engineering goods in 1998?
9. 8%
a. 13%
b. 27%
c. 20%

10. The fall in engineering exports in 1996 from that in 1998 was nearly:
a. 9%
b. 91%
c. 4%
d. 6%

11. Over the 4 year period from 1996 to 1999, engineering exports rose by nearly:
a. 10%
b. 18.3%
c. 30.9%
d. 28.3%

Reply Like? Yes | No

(9 years ago) "Other"

Export of Engineering Goods from India

(in Rs. Crore)
Year Total Exports Engineering Goods exported
1996 5143 552
1997 5404 624
1998 5426 717
1999 5999 653

Reply Like? Yes | No

(9 years ago) "Other"

5. Out of 380 people, 211 visited Qutub Minar, 155 visited Charminar, 260 visited Taj Mahal, and 52 visited all the three, 79 visited only Qutub Minar and Taj Mahal, and 94 visited both Charminar and Taj Mahal. Find the number of people who have not visited only Taj Mahal.

Reply Like? Yes (19) | No (2)

(7 years ago)

120 or 21? Kindly post answer as well

Like? Yes (1) | No

(9 years ago) "Other"

4. A square playground is surrounded by a run way 1.5 m wide. The area of the runway is ¼ times that of the playground. Find the area of the playground.

Reply Like? Yes (4) | No

(9 years ago)

let side of playground be x
side alongwith runway will be = x+1.5+1.5 = x+3
(x+3)^2 - x^2 = (1/4) * x^2
solving this
we get x^2 = 2 or 646

Like? Yes | No

(9 years ago) "Other"

A square playground is surrounded by a run way 1.5 m wide. The area of the runway is ¼ times that of the playground. Find the area of the playground.

Reply Like? Yes | No

(9 years ago) "Other"

If a= -1, b= -2 & c= -3, find the value of [a – (b – c)]2 + [b – (c – a)]2 + [c – (a – b)]2.

Reply Like? Yes (3) | No (1)

(9 years ago) "Other"

A man 50 years old has 8 sons born at equal intervals. The sum of the ages of the father and sons is 186. What is the age of the eldest son if the youngest is a 3 year old?

Reply Like? Yes (3) | No

(9 years ago) "Other"

How many number plates can be made, if the number plates have two letters of English alphabet followed by a two digit number, if repetition of digits or alphabets is not allowed?

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(9 years ago)

26*25*10*9
=58500

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(9 years ago) "Other"

could you please say me whether 7 is a armstrong number or not?

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to (9 years ago) "Other"

hi bro, congrats for this week winner. now i also want to win this daily puzzle..

Reply Like? Yes | No

(9 years ago) "Other"

in how many ways can 5 rings be worn on three fingers

Reply Like? Yes | No

(9 years ago)

Each ring can be worn in either fingers in 3 ways. so
all 5 rings in 3^5 ways

Like? Yes (1) | No

(9 years ago) "Other"

dividend of rs 504 lakhs for shares was annouced by compan.100 employee cum share holders get rs 3.60 laks eah & the share holder who is not the employee gets rs 2.40 lak each .how many share holders are there who are not employee??
Read more at http://www.m4maths.com/suggestion.php#OEH8VzJ23e8cZLFb.99

Reply Like? Yes | No

(9 years ago)

answer will be 60

Like? Yes | No

(9 years ago) "Other"

For real number x, int(x) denotes integer part of x.int(x) is the largest integer less than or equal to x.int(1,2)=1,int(-2,4)=-3. Find the value of int(1/2)+int(1/2+ 100)+int(1/2+2/100)+....+int(1/2+99/100)
( 2 Marks )

(1) 200
(2) 150
(3) 100
(4) 50

Reply Like? Yes (1) | No

(9 years ago) "Other"

Q. Find the reminder of 2^1040 divided by 131.
1.5
2.1
3.3
4.7

Reply Like? Yes (1) | No

(9 years ago) "Other"

The infinite sum of the series 1/7+4/7^2+9/7^3+16/7^4+........equals.
1.27/14
2.21/13
3.49/27
4.none of these

Reply Like? Yes | No

(9 years ago) "Other"

Find the side of equilateral triangle on which a plane is flying on its side with a speed of 240,300,260km/hr

Reply Like? Yes | No

(9 years ago)

3xyz/(xy+yz+zx)=264.40

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(9 years ago) "Other"

In how many ways can the letters of the english alphabet be arranged so that there are seven letter between the letters A and B, and no letter is repeated

Reply Like? Yes | No

(9 years ago) "Other"

How many distinct 4 digit numbers can be formed using the digits 3,3,5,5,5,8,8,8,8 which are greater than 5000?
1. 54
2. 51
3. 56
4. 60

Reply Like? Yes | No

to (9 years ago) "Other"

14.A is thrice as good a work man as B and takes 10 days less to do a piece of work than B takes. B can do the work in :
a. 12 days
b. 15 days
c. 20 days
d. 30 days

Reply Like? Yes (27) | No (3)

(9 years ago)

15 days
1 day work for A = 1/A = 1/(B-10)[takes 10 days less than B] = 3/B[thrice efficient as B]
solving above we get B=15 days

Like? Yes (13) | No (1)

(9 years ago)

ratio of efficiency=3:1=a:b
ratio of required days a:b=1:3
now a takes 10 days
so b takes 30 days(answer)

Like? Yes (5) | No (10)

(9 years ago)

15 DAYS
REASON;- RATE OF WORK A:B = 3:1
TIME TAKEN A:B = 1:3
LET X BE THE TYM TAKEN BY A TO FINISH THE WORK.THEN, B TAKES 10 DAYS MORE, SO X+10
NOW, 1:3 :: X:X+10
=> 1(X+10)=3X
=> X=5
=>B CAN DO THE WORK IN X+10 => 5+10 =>15 DAYS.

Like? Yes (10) | No (1)

(9 years ago)

option b
1:3::x:x+10
solve and get x=5,so B=x+10=15 days

Like? Yes (2) | No (1)

(9 years ago)

simple question..
option b.
1:3 :: x:x+10 => x=5 then x=5+10 => x=15 days

Like? Yes (2) | No (1)

(9 years ago)

Sum of the digits in the product of (16^100)*(125^135) is
A)2 B)5 C)3 D)4

Like? Yes (5) | No

(9 years ago)

A:b=1:3,
3-1=10
2=10,
1=5=a
3=15=b

Like? Yes (2) | No

(9 years ago)

1/3=x/x+10=>x+10=3x=>2x=10=>x=5
A work in 5 and B work in x+10=>15

Like? Yes (1) | No

(9 years ago)

3A=B
A =B -10
solving above two
==> B =15

Like? Yes (4) | No

(9 years ago)

A:B=1:2 time taken by a and b so
1:2=(x-10):x
x=20

Like? Yes (1) | No (1)

(9 years ago)

Ans=15 days
A=3B and let x be the number of days B takes to complete the work
(x-10)=x
then,
a*(x-10)=b*x
3b*(x-10)=b*x
solving above u get, x=15 days

Like? Yes (1) | No (1)

(9 years ago)

Ratio of efficiency a:b=3:1
ratio of time=1:3
if the difference of time is 2 days ,b works 3 days
difference of time is 10 days ,b works=3/2*10=15 days

Like? Yes (2) | No

(9 years ago)

Ratio of time taken by A and B =1:3
let the is x
the 1:3::x:x+10
x=5
B can do the work in 15 days.

Like? Yes (1) | No

(9 years ago)

ratio of workdone by A and B=3:1
ratio of times taken by A and B=1:3
let, time taken by A is y so B is 3y
so, y=3y-10
y=5
therefore,B can do the work in 15 days

Like? Yes (1) | No

(9 years ago)

Ans is (b )15days
Here,
work ratio A:B= 3:1
days ratio A:B=1:3
Now,
day of A / day of B = 1/3
(B-10) / B =1/3 { as A take 10 days less than B}
So, B=15 Days (ANS)

Like? Yes (1) | No

(9 years ago)

15days obviously...

Like? Yes (1) | No

(9 years ago)

15 days is the answer

Like? Yes (1) | No

(9 years ago)

b is right ans
3a=b.....(1),a=b-10.....(2)
by putting 1 eq in to 2 eq
we get a=5 & b= 15 days

Like? Yes (1) | No

(9 years ago)

15 days

Like? Yes (1) | No

(9 years ago)

Use the formula M1*E1*D1*T1/W1=M2*E2*D2*T2/W2
Put the given data as per your logic and you can evaluate it as-
3y*(x-10)=x*y
calculate x, it turns out to be 15

Like? Yes (1) | No

(9 years ago)

3 A=B from options subtracting 10 from each and getting if it can satisfy for equation we get 15 days as correct answer.

Like? Yes (1) | No

(9 years ago)

a=3b
a-b=10
so2b=10
b=5
so b does in 3*5=15 days

Like? Yes (1) | No

(9 years ago)

LET A takes X days.then
A/B=3/1=(X+10)/X
X+10=3X
X=5;
SO B takes 5+10 days=15 days.

Like? Yes (1) | No

(8 years ago)

b. B can do this work in 15 days & A can do this in 5 days...

Like? Yes (1) | No

(7 years ago)

A:B =1:3......15 days

Like? Yes | No

(7 years ago)

efficiency of A = 3
efficiency of B = 1
Time taken by A = (x-10)
Time taken by B = x
WORK DONE = TIME TAKEN * EFFICIENCY
3 (x-10) = 1 * 3
x =15
B will take 15 days

Like? Yes | No

(7 years ago)

B 15
Let B complete in x days then A would do in x/3 days so ×/3=×-10 hence x=15.

Like? Yes | No

to (9 years ago) "Other"

0,3,?,25,119 what will be the no. in the blank.

Reply Like? Yes | No

(9 years ago) "Other"

11. A and B working separately can do a piece of work in 9 and 12 days respectively. If they work for a day alternately. If A begins first, in how many days the work will be completed ?
a. 1012 days
b. 1014 days
c. 1023 days
d. 1013 days

Reply Like? Yes (2) | No

(9 years ago) "Other"

If the number is increased by 10% then it would be decreased by10% .. What is the net increased or decreased percentage ....1)99% iinecrease 2)no change 3)1% decreasd 4)2% increase ...
What is correct answer

Reply Like? Yes (1) | No

(9 years ago)

let the no. be 100
after increase itll be 110
then decreasing 10% itll become 99
i.e.1% decrease on original

Like? Yes | No

(9 years ago) "Other"

Three people check into a hotel.

They pay £30 to the manager and go to their room.

The manager suddenly remembers that the room rate is £25 and gives £5 to the bellboy to return to the people.

On the way to the room the bellboy reasons that £5 would be difficult to share among three people so he pockets £2 and gives £1 to each person.

Now each person paid £10 and got back £1.

So they paid £9 each, totalling £27. The bellboy has £2, totalling £29.

Where is the missing £1?

Reply Like? Yes (2) | No

(9 years ago) "Other"

If f(x)=ax+b then f(f(f(x)))=27x+39 then a+b is

Reply Like? Yes (7) | No

(9 years ago)

a+b=6
f(f(f(x))) = f(f(ax+b)) = f(a(ax+b)+b) = a(a(ax+b)+b)+b = a^3 x +a^2 b + ab + b = 27x + 39(given)
therefore, a^3 = 27
i.e. a=3
putting in above equation b=3
so, a+b =6

Like? Yes (15) | No

(9 years ago)

ratio of efficiency=3:1=a:b
ratio of required days a:b=1:3
now a takes 10 days
so b takes 30 days(answer)

Like? Yes (2) | No (2)

(9 years ago)

f(f(f(x))) = f(f(ax+b))
= f(a2*x + ab + b)
= a3*x + a2*b + ab + b
= 27x + 39 Comparing the coefficients of x, a3=27 and hence a=3.

Also a2*b + ab + b = 39, As a=3, b=3 and a+b=6

Like? Yes (4) | No (1)

(9 years ago)

Sum of the digits in the product of (16^100)*(125^135) is
A)2 B)5 C)3 D)4
Can any one solve this sum................for me

Like? Yes (25) | No (1)

(9 years ago)

a+b=6
f(f(ax+b)=27x+39
f(a^2x+ab+b)=27x+39
a^3x+a^2b+ab+b=27x+39
a^3=27
a=3
3^2b+3b+b=39
9b+3b+b=39
13b=39
b=3

Like? Yes (2) | No (2)

(9 years ago)

f(f(f(x)))=f(f(ax+b))=f(a(ax+b)+b)=a(a(ax+b)+b)+b=a^3x+a^2b+ab+b=27x+39(from ques)
on equating a^3=27==>a=3
then 3^2b+3b+b=39
13b=39==>b=3
a+b=3+3=6

Like? Yes (2) | No

(9 years ago)

a=3,b=3..by solving u can get this.

Like? Yes (2) | No (2)

(5 years ago)

A=3 and B=3 so A+B=6

Like? Yes (1) | No

(9 years ago) "Other"

Eric throws two dice, and his score is the sum of the values shown. Sandra throws one die, and

her score is the square of the value shown. What is the probability that Sandra’s score will be

strictly higher than Eric’s score?

a) 137/216

b) 17/36

c) 173/216

d) 5/6

Reply Like? Yes (8) | No (2)

(9 years ago)

137/216 is the ans

Like? Yes (1) | No

to (9 years ago) "Other"

efficiency of A:B=2:3
time taken to complete the work =18 hrs
so if capability of both dng the wrk is 2+3=5,5 wrk in an hour...........total work will be=18*5 i.e 90
A time taken to do the work alone is (90/2=45 days)
abd B takes time to do the work alone is (90/3=30 days)
In refernce to the solution u have posted ...can u explain how cum u arrived at ratio of 2:3 as efficiency of work of A and B.....??

Reply Like? Yes | No

(9 years ago) "Other"

Sum of two numbers is 1/3rd of 1/5th of 195 and product is 1/6 th of 1/4th of 960. Find 1/3 of the difference between numbers :

Reply Like? Yes | No

(9 years ago)

Let the numbers be a and b
a + b = (1/3) of (1/5) of 195 = 39
a * b = (1/6) of (1/4) of 960 = 40
solving a+b =39 and ab = 40
we get a quadratic equation a2 - 13a +40 =0
its solution is a=5,8
for this correspondingly b = 8,5
their difference:
a=8 , b=5 , a-b=3 so 1/3 of difference is 1
a=5 , b=8 , a-b= -3 so 1/3 of difference is -1

Like? Yes | No (1)

(9 years ago)

a+b= 1/3rd of 1/5th of 195=13
a*b=1/6 th of 1/4th of 960=40
a*a+b*b=169-80=89
a-b=sqrt(89-2*40)=sqrt(9)=3
1/3 of the difference between numbers :1/3*3=1

Like? Yes | No

(9 years ago) "Other"

If A ^B means A raised to the power of B, in which of the following choices must P be greater than Q

Reply Like? Yes (5) | No (2)

(9 years ago) "Other"

In how many ways passenger is arranged so that two s never comes together

Reply Like? Yes (1) | No

(9 years ago) "Other"

no.of outcomes =6
total no.of outcomes=20
so probability=6/20=3/10

Reply Like? Yes | No

to (9 years ago) "Other"

A monkey is 60 m away from banana tree to left side and 40 m away from mango tree to right side.when tail of monkey pulls from left side it moves 20 m to left and if tell pulls from right side then monkey moves 20 m towards right.This process continues till monkey will reach any of tree.
1. Total number of time when tail pulls=21.
2. Right side pulls 3 times more than left side.

Reply Like? Yes | No

to (9 years ago) "Other"

for rs 600 mr karan can buy a max of 24 cups of tea and for rs 1500 he can buy a maximum of 15 cups of coffee.he has 2200 in his pocket and purchase 8 cups of tea what is the max no of cups of coffee he can purchase with the remaning money

Reply Like? Yes | No

to (9 years ago) "Other"

How many liters of 20% alcohol should be mixed with 60 % alcohol to get 32% alcohol
(1) We get 70 liters of 32% alcohol
(2) We used 21 lit of 60% alcohol, to prepare 32%
A if the question can be answered by using one of the statements alone, but cannot be answered by using the other statements alone
B if the question can be answered by using either statement alone
C if the question can be answered by using both statements together,but cannot be answered by using either statement alone
D if the question cannot be answered even by using both the statements together

Reply Like? Yes (5) | No

(9 years ago)

D if the question cannot be answered even by using both the statements together

Like? Yes | No

to (9 years ago) "Other"

Is x^2+y^2 divisible by 5?

(1) When x-y is divided by 5, the remainder is 1
(2) When x+y is divided by 5, the remainder is 3

Reply Like? Yes | No

to (9 years ago) "Other"

G has 96 chocolates to give her grandchildren. how many >5 year old grandchildren does G has.
a. G gives 5 chocolates for every >5 year old
b. G gives 6 chocolates for every

Reply Like? Yes | No

to (9 years ago) "Other"

There are two statement:
1) 4n-2 is a squire no.
2)5n-3 is a squire no.

Reply Like? Yes | No

to (9 years ago) "Other"

Q. Solve 10/x > 10/y
1) x>y
2) x is non negative

Reply Like? Yes | No

to (9 years ago) "Other"

A bowl will contain Rs 1, 50 paise and 25 paise coins. What is the total amount in the bowl ?
(1) Total number of coins are 20
(2) The number of 50 paise and 25 paise coins are in the ratio of 7:3

Reply Like? Yes | No

(9 years ago)

14.25 Rs.

Given ratio of 50 paise & 25 paise coins as 7:3 ,So they can be 7,3 or 14,6 in quantity
With only statement (2), it is not clear about 1 Rs. coins, to get total amount
With statement (1), total coins are 20, so 50 paise & 25 paise coins should be 7 & 3 respectively , so remaining 10 coins of 1 Rs.
Total amount in the bowl= (10*1) +(7*0.5) +(3*0.25)=14.25 Rs.
So both statements are needed to answer.

Like? Yes (3) | No

to (9 years ago) "Other"

An aircraft carries 521 people safely from Kedarnath to Dehradun in 12 hours.How many rounds it take.
1.It can carry a maximum of 54 people at a time.
2.I 45 minute to fly from one city to other and 15 minute while waiting.

Option:
A.If one alone can give the answer but other can not give answer.
B.If both together can give the answer.
C.If either of two can give the answer
D.Neither of two can give the answer.

Reply Like? Yes | No

to (9 years ago) "Other"

a and b are natural number , Is a>b??
a) 8-(a-b)^3 is positive
b) 4-(a-b)^2 is negative

Reply Like? Yes | No

to (9 years ago) "Other"

if p,q are positive integers and p>q and pq=24 then what is the value of p?
1.p/q is integer
2.q/3 is integer

Reply Like? Yes | No

to (9 years ago) "Other"

i rope is cut into 4 part and one part is of 3cm , then what is the size of smallest part
a) sum of first three part =11cm
b) sum of last three part =10 cm

Reply Like? Yes | No

to (9 years ago) "Other"

If N is a positive integer than the no. of factors of 12N are?
(i)if N is a prime number
(ii)if N is an odd number

(a) (b) (c) (d)

Reply Like? Yes | No (1)

to (9 years ago) "Other"

(#M40151702) ELITMUS QUESTION logarithms KEEP AN EYE
IMAGE: HTTP://WWW.M4MATHS.COM/IMAGES/EYE_CLOSE.PNG

Keep an eye puzzle
solve [logap(log(a/p)]/[logpa(log(p/a))] where logap is log base a p

Reply Like? Yes (1) | No

to (9 years ago) "Other"

if we have two cube ,we painted the cube with blue and pink colour only,if we painted first cube with 4 side pink colour and other 2 side with blue color, if we have probability 1/3,how many sides we will paint pink color in second cube.(probabity for both have same color is 1/3)

Reply Like? Yes | No

to (9 years ago) "Other"

A palindrome no.is a no which appears/read as same when read in reverse order,eg 1221.x is a two digit palindrome no.and y is three digit palindrome no.z=x+y.
What is the middle digit in y?
Conditions:
a)z is a 4 digit palindrome no.
b)z is an odd no.

Reply Like? Yes | No

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