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Maths Quotes

Mathematical proofs, like diamonds, are hard and clear, and will be touched with nothing but strict reasoning.

John Locke

If I feel unhappy, I do mathematics to become happy. If I am happy, I do mathematics to keep happy.

Alfred Renyi

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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to (9 years ago) "Other"

hi spandan...this is yel mekala

Reply Like? Yes (3) | No

to (9 years ago) "Other"

out of every 100 people in police department 10 are women. out of every 100 people in military forces, 3 are women. In batch of 180 police personnel and 200 army personnel , how many of them would be women?

Reply Like? Yes (30) | No (1)

(9 years ago)

ans may be 24 accordng to me.......

Like? Yes (7) | No (1)

(9 years ago)

[Police department]For 100 people 10 women => 1 people =10/100=>1/10
[Military forces]For 100 people 3 women => 1 people = 3/100
Now (180*1/10)+(200*3/100)=24

Like? Yes (6) | No

(9 years ago) "Other"

Reply Like? Yes | No

(9 years ago)

24
Number of women=180*(10/100) + 200*(3/100) =18 + 6 =24

Like? Yes | No

(9 years ago)

24(among 100 women are 10 so in 180 it will 18) same as in miletary 100 ,3 women so in 200 ,6 women are total is 24

Like? Yes | No

(9 years ago) "Other"

I already appeared in amdocs in april 2014.. can i appear again before 12 months? 11 months has already gone.. and please help me.. its urgent. Are they check the validity of 12 months or its fake? Please tell me..

Reply Like? Yes | No

(9 years ago) "Other"

Ravi lends Rs 3600 on simple interest to Harsh for a period of 5 years. He lends a part of the amount at 4% interest and the rest at 6% and receives Rs. 960 as the amount of interest. How much money did he lend on 4% interest rate?

Reply Like? Yes (9) | No (3)

(9 years ago)

Rs 1200

If amount lend at 4% interest=x and at 6% interest=3600-x
Given, (x*5*4/100)+[(3600-x)*6*5/100]=960
20x+108000-30x=96000
x=1200

Like? Yes (7) | No (5)

(9 years ago) "Other"

solve 101111..........23450 divided by 9.

Reply Like? Yes | No

(9 years ago) "Other"

Please send me the latest E-litmus question papers

Reply Like? Yes | No

(9 years ago) "Other"

Did everyone receive hall tickt fr tcs online test scheduled to be held on the 2nd of march??

Reply Like? Yes (2) | No

(9 years ago)

yup i got a call for 2nd march off campus

Like? Yes (1) | No

(9 years ago)

Stiil waiting... :-(

Like? Yes (1) | No

(9 years ago) "Other"

Does anyone has idea when would be the interview for tcs of written on 20th feb?

Reply Like? Yes | No

(9 years ago)

i think it will be in your city.. I have also not received the venue of the interview..

Like? Yes (1) | No (1)

(9 years ago) "Other"

plz send me latest infosys placement paper on pritigawai710@gmail.com

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

(9 years ago) "Interview"

Maithli purchased a walkman from her friend. She then sold it for Rs. 90. Had it been

sold for Rs. 105, the gain would have been 1/4 of the former loss. What is the cost of the

walkman?

Reply Like? Yes (52) | No (12)

(9 years ago)

102 is the answer

Like? Yes (15) | No (7)

(9 years ago)

gain=sp-cp
loss=cp-sp
so according to question:
(105-cp)=1/4(cp-90)
510/4=5cp/4
510=5cp
cp=102

Like? Yes (30) | No (9)

(8 years ago)

can anybody clearly explain the above question

Like? Yes (6) | No (2)

(7 years ago)

need explanation clearly

Like? Yes (4) | No (2)

(5 years ago)

There are two S.P's and one gain and one loss. So we need to equate the equation :
105 - C.P = 1/4 *(C.P - 90)
cross multiply each other....
4*(105 - C.P) = 1 * (C.P - 90)
420 - 4*C.P = C.P - 90
420 + 90 = 4 c.p + c.p
510 = 5 c.p
C.P = 510/5
C.P = 102

Like? Yes (7) | No

(5 years ago)

formulas:
Profit=selling price-cost price
Loss=cost price-selling price

Given that;

(105-cp)=1/4(cp-90)
510/4=5cp/4
510=5cp
ANSWER; cp=102

Like? Yes (2) | No

(9 years ago) "Other"

i got mail from tcs off campus drive feb 20th.can please tell me ,how much toughness will be in tcs interview..what will be the ratio of students they can select.please advice me

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

(9 years ago)

i have also received.. but my venue of interview is not declared.. u have received ur venue of interview mail??????

Like? Yes (1) | No (1)

to (9 years ago) "Other"

hey urmi send me the afcat papers if you have

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

to (9 years ago) "Other"

and suggest me to prepare for apti...i have it on 2nd march

Reply Like? Yes | No

to (9 years ago) "Other"

hey pls share ur tcs question paper pattern

Reply Like? Yes | No

(9 years ago) "Other"

does anybody have any idea when will be the next off campus drive of tcs and infosys for 2015 batch ?

Reply Like? Yes | No

to (9 years ago) "Other"

hi tanu kaisa chal rha h sab

Reply Like? Yes (1) | No

to (9 years ago) "Other"

heloooool engineer

Reply Like? Yes | No

(9 years ago) "Other"

can any one explain to me the procedure to solve crypt-arithmetic problems?

Reply Like? Yes | No

(9 years ago)

There is no book available for it just go to cryptarithmetic.in and start solving the questions.....

Like? Yes (2) | No

to (9 years ago) "Other"

hiii manjusa..............

Reply Like? Yes | No

(9 years ago) "Other"

8, 6, 9, 23, 87 , ... What number should come next?

Reply Like? Yes | No

(9 years ago)

429

8*1 - 2 = 6
6*2 - 3 = 9
9*3 - 4 = 23
23*4 -5= 87
87*5 -6= 429

Like? Yes (2) | No

(9 years ago) "Other"

Plz provide some tricks for IBPS exam

Reply Like? Yes | No

(9 years ago)

plz check this link - http://www.m4maths.com/frequently-asked-placement-questions.php?SOURCE=IBPS

Like? Yes | No

to (9 years ago) "Other"

Try This...

Let S be the set of all positive integers n such that each of n and n+1 have exactly four divisors and have their divisors add to the same value.

Let m be the number of elements in S and b be the sum of these m elements.

Find m+b.

Reply Like? Yes (2) | No

(9 years ago) "Other"

Three cards are drawn at random from a pack of 52 cards. Find the probability that one of the cards drawn is an ace, one is a jack and one is queen

a. 3/52
b. 3 4C1 / 52C3
c. 4 C1 / 52 C3
d. (4 C1) 3 / 52 C

Reply Like? Yes | No

(9 years ago) "Other"

Two objects A and B are of lengths 5 cm and 7 cm determined with errors 0.1 cm and 0.2 cm respectively. What is the error in determining (a) the total length and (b) the difference in their lengths?
a) (12 + 0.3) cm, (2 + 0.3) cm b) (12 + 0.3) cm, (2 + 0.1) cm

c) (12 + 0.1) cm, (2 + 0.3) cm d) 12cm,2cm

Reply Like? Yes (2) | No

(9 years ago) "Other"

Hi Friends
I am pursuing final year B.tech and from ECE background.
Please help me how to prepare for AMCAT.I dont know how the test will and what are the sections.Please guide me friends

Reply Like? Yes | No

(9 years ago) "Other"

Results announced for TCS Off-Campus Test 20 feb

Reply Like? Yes | No

(9 years ago)

yup... but the site is not opening..

Like? Yes | No

to (9 years ago) "Other"

my elitmus score
Quant : 60 pts, 94 percntle
Verbal: 15 pts,20 percntle
Problm Solvng: 56 pts,92 percntle
What are my chances of getting a call?
Can i bag a good package.
I am a BE 2014 passout

Reply Like? Yes | No

(9 years ago) "Other"

If any one gets the mail from infy regarding the interview which held at 12 feb 2015 at guru teg bahadur college ,delhi..........plz share here......

Reply Like? Yes | No

(9 years ago) "Other"

lim(2-x)tan(3.14x/2)
x-1

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(9 years ago) "Other"

hai friends.....gudmrng...... i am mtech(ece) fresher.... now searching for job... please inform to me if any openings are there for freshers.... and inform to me mnc notifications....offcampus drive dates....

himabindu.ganneni@gmail.com

thanks in advance
HimaBindu

Reply Like? Yes | No

to (9 years ago) "Other"

did you got mail form TCS? when?

Reply Like? Yes | No (3)

(9 years ago)

2nd march 2015 and if any one have previous papers means send me my mail is rajitha438@gmail.com

Like? Yes | No

(9 years ago)

yes .. just now.. at 12.30 pm 25 feb

Like? Yes | No

(9 years ago)

u can check your result on campus commune.

Like? Yes (1) | No

(9 years ago) "Other"

Hai friends.i have missed my IBM referral drive exam on 9th of this month. Is there any chance of getting hall ticket again by IBM ? How to attend the exam again wil they send the admit card for those who have not attended the test ?

Reply Like? Yes | No

(9 years ago)

anupriya u got the mail from tcs...??

Like? Yes | No

(9 years ago) "Other"

Reply Like? Yes | No

(9 years ago) "Other"

Recently i have written tcs off campus ,can any one except the results when it will come

Reply Like? Yes | No

(9 years ago)

by 27th march we can expect.. i just readin some article

Like? Yes | No

(9 years ago)

result are out on campus commune on nextstep.tcs

Like? Yes | No

(9 years ago) "Other"

Got mail from tcs??

Reply Like? Yes | No

(9 years ago)

no i didnt get any mail

Like? Yes | No

(9 years ago) "Other"

if anybody got any mail !!
plz keep me updated..

Reply Like? Yes | No

(9 years ago) "Other"

Hey anyone got mail regarding Tcs Tr & Hr which was held on 20th feb??

Reply Like? Yes | No

(9 years ago)

Not yet...
I too waiting for the mail.

Like? Yes | No

(9 years ago)

No update till now....did anyone you know received any mail from TCS ?

Like? Yes | No

(9 years ago)

not yet.........................................

Like? Yes | No

(9 years ago)

YOU CAN CHECK YOUR RESULT ON CAMPUS COMMUNE BY LOGGING IN THE TCS NEXTSTEP PORTAL, FOR ALL WHO APPEARED.

Like? Yes | No

(9 years ago) "Other"

can any one post ionidea placement papers

Reply Like? Yes | No

(9 years ago) "Other"

can anybody tell me about the next round of MAQ. will it be purely technical or quantitative. i got the call through elitmus

Reply Like? Yes | No

(9 years ago) "Other"

If anybody knows about the placement drives in and aRound hyderabad please do post here..or else to apply online then also plz post

Reply Like? Yes | No

to (9 years ago) "Other"

hi i attended the capgemini offcampus igot offer letter what abt u? please share if have contacts raghupatrunihemanth@gmail.com

Reply Like? Yes | No

to (9 years ago) "Other"

i attended capgemini offcampus ...i got offer letter what abt u ? please mail me on 544hemanth@gmail.com

Reply Like? Yes | No

(9 years ago) "Other"

hi guys ! did any one got results for the HCL HR round(call letter) conducted on 17th February at vels university chennai.Thanks in advance.

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

(9 years ago) "Other"

what this code does pls explain line by line
library TestDLL;

uses
Sharemem,
SysUtils,
Classes;

{$R *.RES}

// This Function Returns the String in Reverse order ;
function ReverseString( A: PChar ): PChar ; Cdecl;
Var
S, X : String;
i : Integer;
Begin

X := A;
For i := Length(X) Downto 1 Do
Begin
S := S + X[i] ;
End;

ReverseString := PChar(S) ;
End;

exports
ReverseString ;
begin
end.

Reply Like? Yes | No

(9 years ago) "Other"

did anyone get mail regarding tcs off campus results???? plz reply

Reply Like? Yes (12) | No

(9 years ago)

they will send the mail on 24 feb..

Like? Yes (6) | No

(9 years ago)

@neal how do you know that exact date ? did you call someone there ?

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(9 years ago) "Other"

In elitmus
I got
Verbal-80
Problem solving-58
Quant-44
What are my chances?????????????

Reply Like? Yes | No

(9 years ago)

retry!!!!!!!!1 quant and ps should be above 80 atleast

Like? Yes | No

(9 years ago) "Other"

In elitmus
In verbal- 80
problem solving-63
Quantitative- 66
What are my chancs

Reply Like? Yes | No

(9 years ago) "Other"

1. If a+b = 3, a^2+b^2 = 7 then a^4+b^4?
2. Largest side of a triangle is 40 units, one of its sides is 24 units and the area is 384 square units then find the other side of the triangle.
3. A box contains 8 green balls and 5 red balls. Find the probabilities of picking exactly 3 green balls with replacement and without replacement.
4. How many 6 digit even numbers can be formed by using 1, 2, 3, 4, 5, 6 and 7 such that the second last digit is even?
5. John has 3 shirts, 4 pants and 6 ties in how many ways john can wear them?
6. A survey of n people in the town of badaville found that 50% of them prefer brand A. another survey of a100 people in the town of chottaville found that 60% prefer brand A .In total 55% of all the people surveyed together prefer Brand A. What is the total number of people surveyed?
7. The savings of employee equals income minus expenditure. If the income of A,B,C are in the ratio 1:2:3 and their expense ratio 3:2:1 then what is the order of the employees in increasing order of their size of their savings?

8. Two full tanks one shaped like the cylinder and the other like a cone contain liquid fuel the cylindrical tank held 500 lts more than the conical tank after 200 lts of fuel is pumped out from each tank the cylindrical tank now contains twice the amount of fuel in the canonical tank How many lts of fuel did the cylindrical tank have when it was full?

9. f(x)= 2(x) +1, f(f(f(f….f(n))))12 times = 81919 then n=?

10. 1(1!) + 2(2!)+3(3!)+….2012(2012!)=? A. 2013! -1 B.2013!+1 C.2013! D. none.

11. A’s salary is 20% more than that of B C’s salary is 40% more than that of A D’s salary is 20%less than that of E E’s salary is 20% more than that of A then D’s salary is what % of B’s salary

12. A vessel contains 180 lts of spirit if 30 lts of spirit is taken out and 30 lts ow water is added to it this process is done for two more times then what is the volume of spirit present at last.

13. A ,B,C can do a piece of work in 12,15,20 days r^ly and A ,B,C starts doing a work together A leaves after working for 2 days B leaves 3 days before the completion of work . In how many days the work is completed by them.

14. Two equilateral triangles of side 12 units are drawn one upon the other to form a star and a common circum circle is drawn to them then finds the area enclosed in circle but not in star.

15. ) There is a pool of radius X and there is a path way around the pool with a width of 4 feet. Find the radius of the pool if the path area / pool area = 11/25.

16. Find the probability that a year containing 53 Sundays is a leap year.

17. In a race between A,B,C and D. A said ‘I am not 1st or 4th ‘ B said ‘ I am not 4th’ C said ‘ I am not 1st’ D said ‘ I am 4th’ if only three of them said truth then who is 4th in that race.

18. Jack walks faster than paul, both walks 24km each.sum of their speeds is 7kmph and sum of their times is 14 then find jacks speed.

19. jack started walking from his home at 12:00 hours at speed of 6kmph and at 13:30 hours paul follows jack from jack’s home on a cycle with a speed of 8 kmph at what time will be jack 3km behind paul?

20. if f(1)=0

f(m+n)=f(m)+f(n)+4*9mn-1 find f(17)?

21. 2^39 divided by 39, remainder=??

22. A can of 100 lts contains 50%milk and another can of capacity 300 lts contains (2/3)rd milk remaining volume of both the cans is filled with water. Now these two liquids are poured in to a drum whose volume is more than the sum of these two cans. The %of milk in the drum is?

23. Cost of the apples is Xrs per kg if the weight is a num from C. (not sure about numbers)(it is a star mark qn)

28. 9+99+999+9999+............+ up to 23 terms find the last 3 digits of the sum.

29. 3 dies are rolled probability of getting a sum of 10

Reply Like? Yes | No

(9 years ago) "Other"

1. Tony alone can paint a wall in 7 days and his friend Roy alone can paint the same wall in 9 days. In how many days they can paint the wall working together? Round off the answer to the nearest integer.
a. 3
b. 4
c. 5
d. 7
2. Mr. Bean chooses a number and he keeps on doubling the number followed by subtracting one from it, if he chooses 3 as initial number and he repeats the operation for 30 times then what is the final result?
a. (2^30) - 1
b. (2^30) - 2
c. (2^31) - 1
d. (2^31) – 2
3. Bhanu alone can do a work in 10 weeks and Anu alone can do the same work in 15 days. They worked together and earned $5000, what is Bhanu’s share in it?
a. $1000
b. $2500
c. $3000
d. $4000
4. 64 is divisible by its unit’s digit i.e. 4, then the number of whole numbers which are less than 64 and divisible by their unit’s digit?
a. 42
b. 32
c. 22
d. 12
5. Find the probability that a 3 digit number formed by using the digits 1, 3, 6, 9 without repetition, is divisible by 4.
a. 1/2
b. 1/3
c. 1/4
d. 1/5
6. The number of multiples of 10 which are less than 1000, which can be written as a sum of four consecutive integers is
a. 50
b. 100
c. 150
d. 216
7. A, B, C, D are vertices of a quadrilateral and P is a point inside it, if PA=2, PB=5, PC=6, PD=3 then the maximum possible are of quadrilateral formed by A, B, C, D is?
a. 128
b. 64
c. 32
d. 16

8. f( 1 ) = 1 and f( x + y ) = f( x ) + f( y ) + 3xy + 3. Then find f( 5 ) + f( 7 ).
a. 125
b. 135
c. 144
d. 155
9. A, B and C earn 19266 as a whole, 45 times the share of A is equal to 4 times the shares of B and C together, 12 times the share of C is equal to 7 times the shares of A and B together. What is C’s share?
a. 6087
b. 7098
c. 8079
d. 9066
10. Two friends start travelling from A and B simultaneously towards each other with speeds 50 kmph and 60 kmph respectively. After meeting each other the second person travels a distance of 120 km more than that of the first person. What is the distance between A and B.?
a. 1230
b. 1320
c. 1023
d. 1024
11. 1032A book is published once in every 10 years starting from its origin, sum of the first ten years in which the book is published is 19560, then the year in which the first copy of the book was printed is
a. 1909
b. 1910
c. 1911
d. 1912
12. In a constituency 60% of the voters are in favor of party A and the rest are in favor of party B. On the day of election 75% of the voters who are in favor of party A voted for it, and 20% of the voters who are in favor of party B voted for party A. Then the total % of voters who voted for party A is :
a. 33%
b. 43%
c. 53%
d. 95%
13. The sum of weights of a mother, a daughter and a just born baby is 75, the weight of the mother is twice that of the other two put together, the weight of daughter is 4 times that of the baby. What is the weight of the daughter?
a. 15
b. 20
c. 24
d. 30

14. The number of 11 letter words formed by using English alphabets if all vowels are used such that no two vowels are adjacent to each other is:
a. 5! * 20! / 15!
b. 5! * 21! / 15!
c. 21! / 10!
d. 21! / 15!
15. I’m interested in playing with marbles, In the first round I lost half of the marbles with which I started to play, in the second round I won 11 times of which I lost in first round and after the third round I won 9 more marbles. Now I have 21 marbles with me, with how many marbles did I started to play?
a. 2
b. 4
c. 11
d. 12
16. If (3a+6b)/(5a+12b) = 12/23 then (3a.a + 5b.b)/(a.b) = ?
a. 8.5
b. 9.5
c. 10.5
d. 11.5
17. John and Paul participated in 10k run, the speed of John is 1.5 kmph more than that of Paul and time taken by John is 1.5 hrs less than that of Paul. What is the speed of John?
a. 2
b. 4
c. 6
d. 8
18. If A > B > C, then which of the following are true?
P: A% of B > B% of C
Q: B% of A > C% of B
R: C% of A > B% of C
a. P,Q
b. Q,R
c. R,P
d. P,Q,R
19. Two red dies and one blue die are rolled, what is the probability that the number on the blue die is greater than that of the other dies is?
a. 55/36
b. 55/216
c. 5/216
d. 5/36
20. A valid ISBN code consists of 10 digits like ISBNa1a2a3a4a5a6a7a8a9a10 such that 10.a1+9.a2+8a3+7a4+6a5+5a6+4a7+3a8+2a9+1a10 must be divisible by 11.
ISBN0111200091 is a valid code. Find the number of pairs of (a5, a9) other than (2, 9) such that the given ISBN is a valid code.

21. A chess board of 10*10 is there. To change the color from black to white or vice versa “control+R” is used. Find the min number of times with which the entire board can be made in to a single color.

22. A die which has 8 faces is rolled, then the probability that the sum of the numbers on two faces is greater than 36 is?

23. Now the time shown by a clock is 1:00 pm and it is the correct time, the clock loses 8 minutes for every hour, what is the correct time when the clock shows 12:00 in the midnight.

24. A problem on efficiencies in time and work.

25. A problem on bus and passengers boarding at different bus stops.
26. Sorry, I forgot the question.

27. Sorry, I forgot the question.

28. Out of 6000 apples in a row, every 3rd apple is damaged, every 4th apple is not ripened, every 10th apple is made by using chemicals and the rest are ready to eat. How many apples among 6000 are ready to eat?

29. Star mark question: x = ((2^32) – 1) the sum of factors of x which lie in between 1 and 100 is Hint: (2^2^n + 1) is a prime number for n= 1, 2, 3, 4.
a. 314
b. 176
c. 143
d. 431

30. Star mark question: X = 101102103….150 (writing 101, 102, 103,… 150 together ) what is the remainder when X is divided by 9.
a. 1
b. 2
c. 3
d. 4

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