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You can only find truth with logic if you have already found truth without it.

Gilbert Keith Chesterton

Mathematics is the Queen of the Sciences

Professor Robert Silensky

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

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(10 years ago) "Other"

Which one is better and how ? Igate or Tcs or Infosys

Reply Like? Yes | No

(10 years ago) "Other"

You are the project leader for a team and plan to take your team out for a movie. Using the following phrases, write an email with a minimum of 70 words and a maximum of 100 words to your team members informing the same.

at your residence , decided based on the poll result , on friday , team building activity , forum mall , dinner at Hotel Chevron , will drop , answer the poll immediately , confirm your participation , company cab

Reply Like? Yes | No

(10 years ago) "Other"

hello friends if any body have infosys model please send me
my gmail id: it1006813023@gmail.com , coolriya30@gmail.com
and please give me some suggestion to prepare for written,
I have infosys written exam on 26

Reply Like? Yes | No

(10 years ago) "Other"

what are the streams eligible for capgemini campus placements??

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(10 years ago) "Other"

I want tcs placement paper.. mstiunlimited @gmail.com

Reply Like? Yes (2) | No

(10 years ago) "Other"

hello frds..
Module Name Module Score Module Percentile
English 465 46
Quantitative Ability 475 43
Computer Programming 485 77
Logical Ability 505 65
Computer Science 500 83
....
this s my score...can i hav a chance to get any calls...?
plzz tell me...

Reply Like? Yes | No

(10 years ago) "Other"

remainder when 32^32^32 divided by 9 ??
options: 4 ,0,6,1

Reply Like? Yes | No

(10 years ago) "Other"

In a kilometre race,if A gives B a 40m start,A wins by 19s.But if A gives B a 30s Start,B wins by 40m.Find the time taken by B to run 5000m
a)150
b)450
c)750
d)825
can anyone do this....prove if ur challenged..

Reply Like? Yes (7) | No

(10 years ago)

its 750 according to me

Like? Yes | No

(10 years ago) "Other"

please someone help me with this series,asked in IBM
1,5,4,5,13,2,3,4,22,1,2,3,?

Reply Like? Yes | No

(10 years ago)

28 is the answer

Like? Yes (1) | No

(10 years ago)

30 i think
1+5+4+5 = 15 -2 = 13
13+2+3+4= 22+0 = 22
22+1+2+3 = 28+2 = 30

Like? Yes (1) | No

(10 years ago) "Other"

Q: A person writes a postcard to five of his friends.He asks each one of them to copy the letter and mail to five diffrent persons with the insruction that they move chain similarly. Assume that the chain is not broken. Determine how many postcards are posted in all when the eighth set of letters are mailed?

a) 15625 b) 78125 c) 97656

Reply Like? Yes | No

(10 years ago)

390625 is the right answer

Like? Yes | No

(10 years ago)

5^8 = 390625 is the answer

Like? Yes | No

(10 years ago) "Other"

-23,-16,18,14,-52,-45,37,33,-65,?

Reply Like? Yes | No

(10 years ago)

90.....is it right

Like? Yes | No

(10 years ago) "Other"

Suppose you want to break a stick at a point chosen uniformly at random.then the expected length of the shorter stick is?
Plzz guys help me with complete solution

Reply Like? Yes | No

(10 years ago)

Less than half because the shorter stick will be obviously less than half

Like? Yes | No

(10 years ago) "Other"

Suppose you break a stick of unit length at a point chosen uniformly at random.then the expected length of the shorter stick is?
Plzz guys help me with complete solution

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(10 years ago) "Other"

guys i am 2014 pass out ece graduate anyone please tell me..what are compulsory modules in amcat exam to get certified for an it job..

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(10 years ago) "Other"

Q:

Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

Reply Like? Yes | No

(10 years ago) "Other"

Two consecutive numbers are removed from progression 1,2,3......n.The arithmetic mean of the remaining numbers is 26 1/4.then find the value of n?

Reply Like? Yes | No

(10 years ago) "Other"

apple+grape=cherry. then what is the value of cherry?? can any one explain the answer..

Reply Like? Yes (1) | No

(10 years ago)

42236
+16426
--------
58662

Like? Yes | No

(10 years ago) "Other"

Is it is a formula for finding remainder for (x^y+y^x)/n then x+y is divisible by n?

Reply Like? Yes (1) | No

(10 years ago) "Other"

find out the wrong one
4 3 4.5 8.5 20 53 162.5

Reply Like? Yes (6) | No

(10 years ago)

3 because it is increasing except 3.

Like? Yes (1) | No (1)

(10 years ago) "Other"

pls any one send me infosys model question paper to this mail id:prasana.anusha532@gmail.com

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

(10 years ago)

if you get it bro.plz forward me too bro,,id-kingmayank2011@gmail.com,thnks

Like? Yes (1) | No (1)

to (10 years ago) "Other"

ankitshah9193@gmail.com pls before 18

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

to (10 years ago) "Other"

please do mail me also the tcs papers

Reply Like? Yes (2) | No (1)

(10 years ago) "Other"

98,72,14,? ....solve this one..its correct

Reply Like? Yes (24) | No (4)

(10 years ago)

4
9*8=72
7*2=14
1*4=4

Like? Yes (6) | No (3)

(10 years ago)

9*8=72
7*2=14
1*4=4

Like? Yes (6) | No (4)

(10 years ago)

ans is 4
9*8=72
7*2=14
1*4=4

Like? Yes (6) | No (1)

(10 years ago)

4
as 9*8=72
7*2=14
then 1*4=4
so 4 will be the next term in the series..!!

Like? Yes (3) | No (5)

(10 years ago) "Other"

Plz tell me is there any chance for repeation of quest of IBM in apti round n from where n what should I prepare for quanta apti??????plz help

Reply Like? Yes (2) | No (1)

(10 years ago) "Other"

i have my infosys exam on 26 oct. Plz anyone send me previous question papers of imfosys.

email id-- goyalnidhi.goyal@gmail.com

thanks in advance.

Reply Like? Yes | No

(10 years ago)

mine also ..send me also...

Like? Yes | No

(10 years ago)

Hey nidhi did u get any papers ??
plz mail me at abhishekbpl5@gmail.com

Like? Yes | No

(10 years ago) "Other"

Two circles of radii 5 cm and 3 cm touch each other at A and also touch a line at B and C. The
distance BC in cms is?
Options: a) 60, b) 62, c)68, d)64

Reply Like? Yes (2) | No

(10 years ago)

64 is the answer

Like? Yes | No

(10 years ago)

I guess its root(60)
because It will form a trapezium
whose 2 sides are 5cm and 3cm parallel to each other
with the help break trapezium into right triangle and rectangle
apply Pythagoras to triangle
we get
root(8^2 - 2^2)
which gives
.
.
root(60)

Like? Yes | No

(10 years ago) "Other"

What is summation(k=0 to k=28) k^2*28Ck where 28Ck is the number of choosing k items from 28 items?
Options: a) 406*2^27, b) 306*2^26, c) 28*2^27, d) 56*2^27

Reply Like? Yes | No

(10 years ago) "Other"

what do we answer for the question which doesn`t have any of the option as correct??????????plzzzzzzz reply

Reply Like? Yes | No

(10 years ago)

mark any one, as in the end you will marks for opting a wrong question.

Like? Yes (1) | No

(9 years ago)

leave it blank,dont worry

Like? Yes | No

(10 years ago) "Other"

All numbers from 1 to 150 (in decimal system) are written in base 6 notation. How many of these will not contain any zero?

Reply Like? Yes (57) | No (6)

(10 years ago) "Other"

where can I prepare myself for Essay Writing in CSC( Computer Science Corporation )

Reply Like? Yes | No

(10 years ago) "Other"

Find the number of ways you can fill a 3x3 grid (with 4 corners defined as a,b,c,d) if you have 3 white marbles and 6 black marbles.

Reply Like? Yes | No

(10 years ago)

Ans:

Possibilities of 3 white ball in 9 Places = 9C3=84
filling rest of the places i.e 6 places with remaining 6 black

Total = 9C3 = 84 ways

Like? Yes (2) | No

(10 years ago) "Other"

19. A person was fined for exceeding the speed limit by 10mph. Another person was also fined

for

exceeding the same speed limit by twice the same. If the second person was traveling at a

speed of 35 mph, find the speed limit.

1) 20 mph

2) 15 mph

3) 18 mph

4) 22 mph

Reply Like? Yes | No

(10 years ago)

15 mph
15+ 10=25 for first one
15+2*10=35 second one so 15mph will be ans

Like? Yes (1) | No

(10 years ago)

thanks a lot............:)

Like? Yes | No

(10 years ago)

15mph let spd lmt is X....then X+2*10=35,i.e X=15

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(10 years ago) "Other"

pls anyone send me l&t infotech placement paper on id-ra275819@gmail.com

Reply Like? Yes | No

(10 years ago) "Other"

George walks 36 kms partly at a speed of 4 kms per hour and partly at 3 km per hour If he had walked at a speed of 3km per hour when he had walked at 4 and 4 km per when he had walked at 3 he would have walked only 34 kms. The time (in hours) spent by George in walking was)

a) 5 b) 8 c) 10 d) 12

Reply Like? Yes | No

(10 years ago)

let the time taken be t1 and t2.....then 36= 4*t1 + 3*t2 and 34 = 3t1 +4*t2.....gives t1=6 and t2=4.....total time taken = t1 +t2= 10...
So C is right

Like? Yes (2) | No

(10 years ago) "Other"

12. An express train traveling at 72 km/hr speed crosses a goods train traveling at 45 km/hr speed in
the opposite direction in half a minute. Alternatively, if the express train were to overtake the goods
train, how long will it take to accomplish the task. Assume that the trains continue to travel at the same
respective speeds as mentioned in case 1.
(1) Cannot be determined
(2) 30 seconds
(3) 150 seconds
(4) 130 seconds

Reply Like? Yes (2) | No

(9 years ago)

130 seconds
[(72+35)/(72-35)]*30 = 130

Like? Yes | No

(10 years ago) "Other"

11. A man goes from city A to city B situated 60 kms apart by a boat. His onward journey was with the
stream while the return journey was an upstream journey. It took him four and half hours to complete
the round trip. If the speed of the stream is 10 km/hr, how long did it take him to complete the onward
journey?
(1) 3 hours
(2) 3.5 hours
(3) 2.25 hours
(4) 1.5 hours

Reply Like? Yes (3) | No

(10 years ago) "Other"

5. A certain number of bullets were shared by 3 people equally.Each of them fired 4 bullets and the sum
of the remaining bullets was equal to the initial share each had got.what was the initial number of
bullets?
(a)20
(b)18
(c)16
(d)14

Reply Like? Yes | No

(10 years ago)

let initially each got x bullets ,after firing 4 they are left with "x-4" bullets
sum of remaining ;
3*(x-4)
which is equal to initial number each got
3*(x-4) = x
x = 6
total= 3*6 = 18

Like? Yes (2) | No

(10 years ago)

thanks a lot..:)

Like? Yes | No

(10 years ago) "Other"

22.A bus started from bus stand at 8.00am, and after 30 minutes staying at
destination, it returned back to the bus stand. The destination is 27 miles from
the bus stand. The speed of the bus is 18mph. In return journey bus travels
with 50% fast speed. At what time it returns to the bus stand?
(a) 10:30 am
(b) 10.00 am
(c) 11.00 am
(d) 11.30 am

Reply Like? Yes (2) | No

(10 years ago)

ans is (c) 11am

Like? Yes (1) | No

(10 years ago)

can u please explain it???

Like? Yes | No

(10 years ago)

At 8:00 a.m. the bus started at 18mph, that means it will cover 27 miles in 1hr 30 mins that is by 9:30 a.m. Then after staying for 30 mins it started to return at 10 a.m. This time its speed is increased by 50%, i.e. 27mph (18+9), thus it will cover the return journey of 27 miles in 1 hour, 11:00 a.m.
Thus, the answer is (c). 11:00 a.m.

Like? Yes (3) | No

(10 years ago) "Other"

14. 2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the
same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the
freight train. The average speed of the freight train was?
(a). 30
(b). 40
(c). 58
(d). 60

Reply Like? Yes (12) | No (2)

(10 years ago) "Other"

12.What is the maximum number of half-pint bottles of cream that can be filled with a
4-gallon can of cream (2 pt.=1 qt. and 4 qt.=1 gal)
a) 16
b) 24
c) 30
d) 64

Reply Like? Yes | No

(10 years ago) "Other"

4.If 13 = 13w/(1-w), then (2w) 2 =
a) 1/4
b) 1/2
c) 1
d) 2

Reply Like? Yes | No

(10 years ago)

2w=1
w=1/2
2*w)2=2 ans is d

Like? Yes (1) | No

(10 years ago)

can you explain me how?

Like? Yes | No

(10 years ago) "Other"

2.There are 200 questions on a 3 hr examination. Among these questions are 50
Mathematics problems. It is suggested that twice as much time be spent on each
maths problem as for each other question. How many minutes should be spent on
Mathematics problems
a) 36
b) 72
c) 60
d) 100

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

(10 years ago)

b) 72 minutes

Maths questions=50, Others questions=150
If time spent(in minutes) on other question=x, then time spent on Maths question=2x
Here, (50*2x)+(150*x)= 180, On solving x=18/25
So total time spent on Maths questions=50*2*18/25= 72 min.

Like? Yes (1) | No

(10 years ago) "Other"

1.A coffee shop blends 2 kinds of coffee,putting in 2 parts of a 33p. a gm. grade to 1
part of a 24p. a gm.If the mixture is changed to 1 part of the 33p. a gm. to 2 parts of
the less expensive grade,how much will the shop save in blending 100 gms.
a) Rs.90
b) Rs.1.00
c) Rs.3.00
d) Rs.8.00

Reply Like? Yes | No

(10 years ago) "Other"

eight boys have to be seated in eight chairs numbered 1 to 8 in a row. in how many ways this seating can be done such that if a particular boy does not want to sit in the even numbered chair and another boy wants to sit at the extremes.

Reply Like? Yes | No

(10 years ago) "Other"

Q: Median of a data arranged in ascending order 7,10,15,x,y,27,35 is 17 and when one more observation 50 is added the median has become 19, what is y? I NEED COMPLETE SOL. PLS HELP ME

Reply Like? Yes | No

(10 years ago)

the ans is 21.
for the given series the median is x
so x = 17, from given data
when 50 is added to series
we have two medians both x and y , so its d avg of them
(x+y)/2 =19
(17+y)/2 =19
y =21

Like? Yes (1) | No

(10 years ago) "Other"

one standard form the number 829030000 is expressed as k*10^N . FIND THE VALUE OF k+N

Reply Like? Yes (52) | No (11)

(10 years ago)

82903+4=82907
k=82903,n=4

Like? Yes (15) | No (6)

to (10 years ago) "Other"

hi vinit....pls can u tel me wat 2 study for amcat computer programing test to score gud marks..tanx

Reply Like? Yes | No

(10 years ago) "Other"

If 26, 25, 24,...,3, 2, 1 are the position of the alphabets Z, Y, X,..., C, B, A, respectively and each alphabet has a value which equals the position of that alphabet raised to the value of succeeding alphabet, then which of the following is the exact value of the product (X-A)(X-B)(X-C)....(X-Y)(X-Z)?

a) cannot be determined b) 0 c) 2426 d) 1

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

(10 years ago)

the ans is b)0 as in the series we get a term (x-x) which is =0

Like? Yes (2) | No

(10 years ago)

(X-X) IS ALSO INCLUDED .. SO ANSWER IS 0

Like? Yes | No

(10 years ago) "Other"

did any one have applied for the infosys referral drive 2014?

Reply Like? Yes | No

(10 years ago) "Other"

the number of 6 digit can be formed by the digit 2,2,3,3,4,4 is
solution of this question step by step..??

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