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Maths Quotes

Infinity is a floorless room without walls or ceiling.

Unknown

without maths no can't live in this world

k ravikumar

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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(6 years ago) "Other"

What was the day of the week on 15th aug 1947

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(6 years ago)

15th August 1947 was Friday.

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(6 years ago)

we got the Independence on Friday(i.e. 15th aug 1947 is friday)

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(6 years ago) "Other"

Win a Redmi Note 5 phone by participating in CODSPIRATION - an Online Coding Contest. Register Here po.st/codspiration

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(6 years ago) "Other"

why we read dma in c language .

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(6 years ago) "Other"

In a group of 15,7 have studied Latin, 8 have studied Greek, and 3 have not studied either.How many of these studied both Latin and Greek

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(6 years ago)

3

Number of those who studied at least 1 language=n(LUG)=15-3=12
Let Number of those who studied both languages=n(LnG)=x, then n(L)=7-x and n(G)=8-x
As n(LUG)=n(L) + n(G) - n(LnG)
12=(7-x) + (8-x) + x
=> x=3

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(6 years ago) "Other"

If 2 is coded as 10, 3 is coded as 11 then 4 will be coded as:

Ans a) 110 b) 101 c) 111 d) 100

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(6 years ago)

d) 100

Number is coded into its binary equivalent, so 4 will be coded as 100.

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(6 years ago)

The given numbers are coded in binary form.Thefore binary equivalent of 4 is 100

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(6 years ago) "Other"

There are 9 three digit numbers . Each number is reversed and the reversed number is subtracted from the original number. The results were found to have an average of 0. If for each number, hundreds digit is not less than its unit digit , find the average of the hundreds digit of the greatest and least numbers ?

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(6 years ago)

101 is the least 3 digit number to have "hundreds digit not less than unit digit"

Result = 101-101 = 0

999 is the greatest 3 digit number.
Result = 999-999 = 0

Rest 7 numbers take any palindrome numbers like 252, 373, 444, 505, 666, 767, 868
Or any set giving average result zero like:
234, 432, 566, 775, 476, 988, 777

So required answer = (9-1)/2 = 5

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(6 years ago) "Other"

it's a wonderful platform. I found it today when I was searching for some good puzzles. I liked it most and decided to spend time whenever I have in my hand with this site. Thanks.

Reply Like? Yes (1) | No

(6 years ago) "Other"

ans for
n=4
1
3*2
4*5*6
10*9*8*7

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(6 years ago) "Other"

In a class, 30 students pass in English and 20 students in Math, while some students among these pass
in both. How many more students do only English as compared to those doing only Maths?
1. 10
2. 15
3. 20
4. Indeterminate

Reply Like? Yes | No

(6 years ago)

1. 10

Let number of students who passed in both=x, then
Students who passed only English=30-x and only maths=20-x
So required difference=Only English - Only Maths = (30-x) - (20-x) = 10

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(6 years ago) "Other"

There are eleven people in a group. The average age of the oldest and youngest is 11 years. If any one person leaves the group the maximum and minimum average of the remaining address 12 years and 11 years respectively. Find the average age of the entire group ??

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(6 years ago) "Other"

A basketball player played nine matches. The average number of points he scored per match was 16. His points in the ith match were two less than that in (i-1)th match. Find the average number of points scored in the second and eighth matches ??

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(6 years ago)

Let points scored in first match be x

Then, his points are:
x, x-2, x-4,..., x-14, x-16
Average = [9x- 2(1+2+3...+8)]/9
= [9x-2(8*9)/2]/9
= [9x-72]/9
= x-8 = 16...., Given
=> x = 24
So second match score = 24-2 = 22
Eight match score = x-14 = 24-14 =10
Average points = (22+10)/2
= 16

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(6 years ago) "Other"

https://youtu.be/BUxcIxmsgK8

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(6 years ago) "Other"

Infosys frequently asked synonyms

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(6 years ago)

How to crack Infosys recruitment tests - https://youtu.be/Or_e7_A1vAk

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(6 years ago) "Other"

There are N students in a class.their class teacher gave them a task of finding the average of the first N natural numbers and each of them left out a different number and found the average of remaining numbers.the average of the averages obtained by all the students was 21.find N .

Reply Like? Yes (1) | No

(6 years ago)

sum of sum of numbers given by all N students = N*( 21*(N-1) )

Each student leaves 1 number,,,
let the numbers left by students be k1,k2,k3, ....,kn,,,,so for student1 it will be

21(N-1) = sum of N numbers - k1

=N(N+1)/2 - k1

for every student, it will be N(N+1)/2 - ki
Adding sum obtained by all N students , we get

N*( 21*(N-1) ) = N* ( N(N+1)/2 ) - (k1 -k2 ...... -kn)

adding k1 to kn, we get sum of N numbers

so it will be,, 21*N*(N - 1 ) = (N - 1)*N*(N+1)/2

solving it, we get N=41

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(6 years ago) "Other"

There are 2 containers having mixture of HCL acid and water.in container 1, the ratio of HCL and water is 1:2 and in container 2 the ratio of HCL acid and water is 4:1.find the amount of the mixture that should be taken from container 1 in order to make 28 litres of a mixture containing equal amount of water and HCL ? Can any1 solve this ..??

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(6 years ago)

18 Ltrs mixture from container 1 and 10.0 ltrs of mixture 2 should be taken to make 28 litres of mixture containing equal amount of water and HCL.

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(6 years ago) "Other"

1+2/3 1+3/4 1+4/5 का मानक है

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(6 years ago) "Other"

Can anybody is here to answer my maths puzzle question which my sir asked me and I don't know the answer but I have to tell that today only so plz guys reply that I'm writing that question here okk
If 5/5 =1,
4/4=1
3/3=1
2/2=1
1/1=1
Then what for
0/0= ??
Pls guys reply fast I'm waiting for the answer

Reply Like? Yes (4) | No

(6 years ago)

0/0 is undefined.
So answer should be undefined

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(6 years ago) "Other"

Hi can anyone send gofrugal placement papers or interview questions please send a mail to esaranya97@gmail.com........ Thanks in advance

Reply Like? Yes (1) | No

(6 years ago) "Other"

Hello everyone I m new here
Plzzz guide m regarding toTcs

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(6 years ago)

Hey practice these tcs tests http://po.st/tcs2018 - these are very useful.

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(6 years ago) "Other"

Six contestants, Jaggu, Hari, Komal, Prem, Sham, Gourav are to be ranked first (highest) through sixth (lowest), though not necessarily in that order, at the start of a singles tennis challenge tournament.
Prem is ranked above Gourav.
Jaggu is ranked above both Hari and Sham
Komal is ranked two places above Hari.
Prem is ranked either third or fourth.

Reply Like? Yes (4) | No

(6 years ago)

1. jaggu
2. sham
3. komal
4. prem
5. hari
6. gaurav

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(6 years ago) "Other"

A invesed 15000 and after 8 months B invested 10000,after 1 year A received a profit of 62500 including 25% comission what z profit of B?

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(6 years ago)

Based on investment , profit ratio = 15000*12: 10000*4= 18:4 = 9:2
If total profit is x, then profit after commissioning = 0.75x which is distributed in ratio of 9:2.
Total profit, x= Rs. 72368.42
profit of B= 72368.42-62500= Rs. 9868.42

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(6 years ago) "Other"

In a group of 25 students of management, 12 have taken marketing specialization, 9 have taken operations and 8 have not taken any of these. How many of the students have taken marketing and operations

Reply Like? Yes (1) | No

(6 years ago)

4 students have taken both marketing and operations.

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(6 years ago)

4 students

Students who took at least 1 specialization=25-8=17
Here, n(M)=12, n(O)=9, we have to find n(M intersection O)=?
n(MuO)=n(M)+n(O) - n(M intersection O)
17 = 12+9 - n(M intersection O)
=> n(M intersection O)=4

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(6 years ago) "Other"

ask me any question...

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(6 years ago) "Other"

Three people who work full
-
time are to work together on a
project, but their total time on the project is to be equivalent
to that of only one person working full
-
time. If one of the
people is budgeted for one
-
half of his time to the
project and
a second person for one
-
third of her time, what part of the
third worker’s time should be budgeted to this project?

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(6 years ago) "Other"

Today i have come to know abt dis website..and kn march10th i have an online test for infosys...if i start my preperation with this website..can i score well..someone sugest me tips...thanks in advance

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(6 years ago) "Other"

my elitmus score is verbal 49.95%
problem solving 79.69%
quantitative 78.92% is that any chance for me to getting calls

Reply Like? Yes | No (1)

(6 years ago) "Other"

While riding her car NoN saw 12 of her friends wailing on the bus stop for going home. She offered to ride five of them to their destination. Among them Eku and Miku want to plan next day's work on their way home and decided that either both of them join or none of them would join. Choose the option that indicates number of ways can five friends choose to join NoN. Option-220,210,180,372

Reply Like? Yes (13) | No

(6 years ago) "Other"

How to participate in m4?

Reply Like? Yes (1) | No

(6 years ago) "Other"

(#M40156134) CTS NUMERICAL ABILITY QUESTION

Reply Like? Yes (1) | No

to (6 years ago) "Other"

How to attend the verbal ability in Infosys ?

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(6 years ago)

Buy & practice exclusive Infosys tests here http://po.st/Infosystests

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(6 years ago)

Improve your verbal ability skills by practicing through this http://po.st/verbaltests

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(6 years ago) "Other"

Anyone have spaneos question paper plz share

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to (6 years ago) "Other"

Prakhar do u have Infosys placement paper which comes from devsquare ??
If you have can u plz forward to me at
Sushilkumaarrai@gmail.com

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(6 years ago) "Other"

Monday =611, Tuesday=728, Wednesday=939, Thursday=848, Friday=657, Saturday=661, Sunday=?

Reply Like? Yes | No (1)

(6 years ago) "Other"

Can anybody tell me how to remember tables easily

Reply Like? Yes | No (1)

(6 years ago) "Other"

A pie has to be divided

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(6 years ago) "Other"

Hello to all,
Aspirants who are interested to get a job in Indian Railway must read this –
After a long duration, Railway Recruitment Board has announced vacancies for Assistant Loco Pilot and for Group D.
There are total 26502 posts for ALP and 62907 posts for Group D.
You can get complete information for both these exams from here –
https://goo.gl/GYtxzw
https://goo.gl/SaEv1B
Registration process is on going for both the posts. Hurry up and complete your application form before the last date.
Thanks!

Reply Like? Yes (1) | No

(6 years ago)

okay Thanks for the information

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(6 years ago) "Other"

a,b,c together can finish a piece of work in 12 days, a and c together work twice as much as b, a and b together work thrice as much as c. in what time could each do it properly.

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(6 years ago) "Other"

I'm going to attend the tessolve ,,so I need some tips...

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(6 years ago) "Other"

A and B both start a small business with an Investment of Rs. 3500 and Rs. 4200 respectively. At the
end of few months from the start of business, A withdrew from the business completely. If the annual profit
was divided between A and B In the respective ratio of 5:12, then after how many months from the start of
the business, did A leave the business ?

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(6 years ago)

please solve the problem

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(6 years ago)

After 6 months of start of business
Suppose A left after x months, then
3500x/(4200*12) = 5/12
x=6

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(6 years ago) "Other"

what are the aptitude questions in click lab?

Reply Like? Yes (2) | No

(6 years ago) "Other"

If the difference between compound interest, compounded half-yearly, and simple interest on a
sum of money at 8% per annum for 1 year is Rs. 30, find the sum.

Reply Like? Yes | No

(6 years ago)

If the difference between compound interest, compounded half-yearly, and simple interest on a
sum of money at 8% per annum for 1 year is Rs. 30, the sum is Rs. 18750.

Like? Yes (1) | No

(6 years ago)

Checkout this video for solving Simple & Compound Interest questions - http://po.st/SICI

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(6 years ago) "Other"

The average of the age of a husband and wife, five years ago, was 25 years. The average of the
present age of husband, wife and a child, born during the time, is 21 years. Determine the present age
of the child.

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(6 years ago)

Present age of child is 3 years.

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(6 years ago) "Other"

Reply Like? Yes | No

(6 years ago)

Present age of child is 3 years.

Like? Yes (1) | No

(6 years ago) "Other"

The radii of three concentric circles are in the ratio 1: 2: 3. Find the ratio of the area between the
two inner circles to that between the two outer circles.

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(6 years ago) "Other"

Can anyone help me with spic company pattern

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(6 years ago) "Other"

Can anyone help me with infosys Anna university pool drive pattern

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(6 years ago) "Other"

Six friends M,N,O,P,Q and R are sitting in a row facing towards north. O is sitting between M and Q. P is not at the end. N is sitting immediate right to Q,R is not at the right end.If the left-most person passes a pen to P then how many hands will it pass assuming that each time a transfer occurs both hands are used except for the persons sitting at the ends of his transfer ?

Reply Like? Yes | No

(6 years ago)

They are sitting in positions (Left)RPMOQN or NQOMPR ( left).
so pen will pass only two hands.. one of R and other of P.

Like? Yes (2) | No (1)

(6 years ago)

Answer for this problem is eight and they considered N as the left most person

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(6 years ago) "Other"

Awful site. Different answers to one single question on discussion part, But final correct answer still not given by admin or the owner.

Reply Like? Yes | No

(6 years ago)

This site is community driven, you will find plenty of questions where the right solution is marked by admin and at the same time a number of them for which right solution is not yet selected. Its all about perspective, whether you want to see the glass as half filled or half empty.
Along with your complaint, you could have shared the specific questions for which you are unable to find the solution.

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(6 years ago) "Other"

Hello,
As we all know that IIT JEE is one of the most awaited exam by the aspirants.
So, here is the good news for all the IIT JEE candidates.
IIT Kanpur is going to conduct the JEE Main 2018 Exam on following dates –
JEE Main Offline – 8 April 2018
JEE Main Online – 15 &16 April 2018.
Know more about the JEE Main Exam from here - https://www.eduncle.com/jee-main-exam
Aspirants who will appear in the examination should also know about the changes in exam.
The exam will be conducted in offline as well as in online mode.
I hope it helps!

Reply Like? Yes | No

(6 years ago) "Other"

A carpenter wants to sell 40 chairs. If he sells them at Rs. 156 per chair, he would be able to sell all the chairs. But for every Rs. 6 increase in price, he will be left with one additional unsold chair. At what selling price would he be able to maximise his profits (assuming unsold chairs remain with him) ?
Options:
198
192
204
210
Cannot be determined

help me with the best understandable solution

Reply Like? Yes (3) | No

(6 years ago)

Can not be determined as purchase price is not given.

Like? Yes | No (1)

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