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The more you know, the less sure you are

Voltaire

There r few things whch we knw whch r nt capable of mathmatical reasoning nd when these can nt it is a sign dt our knowledge of them is very smal nd confusd nd where a mathmaticl reasing can be had . It is as dark a foly to make use a candle stick as to g

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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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(6 years ago) "Other"

Can anyone help me with spic company pattern

Reply Like? Yes | No

(6 years ago) "Other"

Can anyone help me with infosys Anna university pool drive pattern

Reply Like? Yes | No

(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

Like? Yes | No

(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.

Like? Yes | No

(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)

(6 years ago) "Other"

The intrest rate that doubles a sum in years?

Reply Like? Yes | No

(6 years ago)

Please specify number of years.
I= s*r*t/100
when I=s
then r*t=100
put value of t ( time in years) to get rate of interest 'r'.

Like? Yes (2) | No

(6 years ago) "Other"

A,B and C together earn Rs. 300 per day, while A and C together earn Rs.188 and B and C together earn rs.152. The daily earning of C is?

Reply Like? Yes | No

(6 years ago)

Daily earning of C = 30
A+B+C = 300.....(1)
A+C = 188..........(2)
B+C = 152..........(3)
(2)+(3) : A+B+2C = 330
(1) substituted : 300+C=330
=>C=30

Like? Yes | No (2)

(6 years ago)

A+B+C = 300.....(1)
A+C = 188..........(2)
B+C = 152..........(3)
Adding (2) and (3), we get
A+B+2C = 340
(1) substituted : 300+C=340
or C=40

Like? Yes (2) | No

(6 years ago) "Other"

For which value of n,the number 16^ 41+2^7925+16^n a perfect square

Reply Like? Yes (1) | No

(6 years ago)

For n= 3921, given number 16^ 41+2^7925+16^n is a perfect square.

Like? Yes (3) | No

(6 years ago) "Other"

can we score higher in AMCAT by preparing previous papers?

Reply Like? Yes | No

(6 years ago)

Yes, just understand logic behind questions of quants, logical ability.
For verbal(English) you have to prepare for large number of previous papers.
Most questions will be repeated.

Like? Yes | No

to (6 years ago) "Other"

What is the answer for the 8 resident

Reply Like? Yes (4) | No (1)

to (6 years ago) "Other"

an ant smartly moves across a staircase taking the shortest distance. calculate the distance it takes to reach top to B from A given that staircase consist of 2 steps. it also known that the length,breadth and height is 6cm,2cm and 1cm respectively

Reply Like? Yes (2) | No

(6 years ago)

Shortest distance would be when ant doesn't travel any distance in the direction of length while climbing the height or passing the breadth.
So for one stair the smart Ant should cover = Height of Stair+ Breadth of stair = 1+2 =3 cm

So for 2 stairs the shortest distance traveled by Ant = 2*3= 6 cm

Like? Yes (2) | No (3)

(6 years ago)

Ant will move diagonally on each step covering a distance of sqrt 5 cms.
Hence total distance travelled for two steps = 2*sqrt 5 cms.

Like? Yes (3) | No (1)

(5 years ago)

Assume there is a staircase with 2 steps length = 6cm and breadth and height are 1 and 2
so the shortest distance is from left end of the 1st step to right end of the 2nd step which forms a right angled triangle, triangle side are AB, AC and BC.
By using pythagoras theorem,
AC^2 = AB^2+BC^2
AC^2 = 6^2+(2+1+2+1)^2 [height + breath of 2 steps]
AC^2 = 36+36
AC = 6 _/ 2

Like? Yes (1) | No

to (6 years ago) "Other"

Reply Like? Yes | No

(6 years ago)

Ant will move diagonally on each step covering a distance of sqrt 5 cms.
Hence total distance travelled for two steps = 2*sqrt 5 cms. = 4.472 cms

Like? Yes (2) | No (1)

(6 years ago) "Other"

Subtracting 20% from x is the same as multiplying x by the what number
a.)20%
b.)90%
c.)100%
d.)80%

Reply Like? Yes (1) | No

(6 years ago)

d) 80%
Subtracting 20% from x = 80% of x

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to (6 years ago) "Other"

Kajalmoharana72@gmail.com please send me TCS question paper only writen exam

Reply Like? Yes | No

(6 years ago)

You can find plenty of past TCS questions at below page:
https://m4maths.com/frequently-asked-placement-questions.php?SOURCE=TCS

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to (6 years ago) "Other"

bro,plz send me ay tcs previous paper raj34266gupta@gmail.com.tanks in advance.

Reply Like? Yes | No

(6 years ago)

You can find plenty of past TCS questions at below page:
https://m4maths.com/frequently-asked-placement-questions.php?SOURCE=TCS

Like? Yes | No

(6 years ago) "Other"

IF A2+X2=B2+Y2=AX+BY=1 THEN FIND A2+B2=

Reply Like? Yes | No

(6 years ago)

IF A2+X2=B2+Y2=AX+BY=1 THEN FIND A2+B2= Sqrt 2

Like? Yes (2) | No

(6 years ago)

IF A2+X2=B2+Y2=AX+BY=1 THEN
A2+B2= 1

Like? Yes (1) | No

(6 years ago)

A^2=X^2=B^2=Y^2= 1/2; Hence A^2+B^2=1/2+1/2=1

Like? Yes (2) | No

(6 years ago) "Other"

is there coding and c language test will be there for tcs off campus drive 2017 batch for mechanical guys

Reply Like? Yes | No

(6 years ago) "Other"

please shrae me TCS coding &mcqs

Reply Like? Yes | No

(6 years ago)

Hey Just 1 day more for TCS off campus drive. I found a last minute prep Free Mock test - http://po.st/freeTCStest .I hope this is useful.

Like? Yes | No

(6 years ago) "Other"

welcome m4maths....................

Reply Like? Yes | No

(6 years ago) "Other"

Q) A positive integer is selected at random and is divided by 7,what is the probability that the
remainder is 1?
A. 3/7 B. 4/7 C. 1/7 D. 2/7

Reply Like? Yes | No

(6 years ago)

1/7
Any number N, when divided by 7, could have remainder as {0,1,2,3,4,5,6}
So total number of possible outcomes = 7
Total number of positive outcome =1

Hence 1/7

Like? Yes (1) | No

(6 years ago) "Other"

solve please:

Give a model for maximising the profit in a company or minimising the loss in a conflict with
optimisation techniques.where quantity f(x) is referred to as the object function while the vector
‘x’consists of decision variables.
A. None of the mentioned options. B. x* =arg min f(x) C. x* =arg max f(x) D. x* =an-1+an
arg min f(x)n

Reply Like? Yes | No

(6 years ago) "Other"

what is output of program?
void main(){
int a;
a='a'>'A';
printf("%d",a);
}

Reply Like? Yes (2) | No

(6 years ago) "Other"

1992 Feb have 5 Sundays. In which year, the month Feb have 5 Sundays next?

Reply Like? Yes | No

(6 years ago)

2020 will have the next,

For every 4 years( between 2 leap years), there will 365*4+1 days
= 1456 days
= 1461+5 days
= 208 weeks + 5 days
= 208 negligible weekdays count + 5 to be considered odd days.

So, 1996 Feb will have 5 Fridays ( because Sunday + 5th odd day = Friday)

So, for every 4 years, if we get 5 odd days.
then to get 7 or multiple of 7 as odd day,
we should go on searching in multiples of 5(required) days,
i.e. in 5,10,15,20,25,30,35,40,45,....
35 is the nearest multiple of both 5,7 which is nothing but LCM(least common multiple)

So to get 35 odd days, we are taking 7 leap years to pass out = 7*4years = 28 years
= 1992 + 28 = 2020

You can cross check it with real calendar, both 1992 and 2020 have 5 Saturdays(respectively)

Short cut, easy, handy method is to find odd days in these kind of questions and use logic accordingly.

Like? Yes | No (2)

(6 years ago)

There will be 5 Sundays in February in 2032 and 2060.
Please check..

Like? Yes (3) | No

(6 years ago)

2020 will not have 5 Sundays in February.

Like? Yes (3) | No

(6 years ago) "Other"

any one suggest me i am 2016 passout i want clear capgemini exam how its possible for me how do prepared for this

Reply Like? Yes | No

(6 years ago)

Practice these questions:
https://m4maths.com/placement-puzzles.php?SOURCE=Capgemini

Like? Yes | No

(6 years ago)

Heres the Capgemini updated test pattern and other details https://prep.placementseason.com/companies/capgemini/

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(6 years ago) "Other"

In how many ways a panel of 5 students be selected from 8 kids if a particular student be included??

Reply Like? Yes | No

(6 years ago)

7c4= 7*6*5/(3*2) = 35

Like? Yes (2) | No

(6 years ago) "Other"

Under rout ke mano me bare me batai sir

Reply Like? Yes | No (1)

(6 years ago) "Other"

The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs. 20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2 : 3, then the price per kg of the mixed variety of rice is:

Reply Like? Yes | No

(6 years ago)

(2x15+3x20)/5=90/5=18 per kg

Like? Yes | No

(6 years ago) "Other"

If 2a*1a*41a and 26*1b=27b. In these products , a and b are positive integers. The value of a+b is

Reply Like? Yes | No

(6 years ago) "Other"

Which one of the expressions DOES NOT GUARANTEE zero value for the integer variable t1 after execution?

Reply Like? Yes | No

(6 years ago) "Other"

46. Below is given a question followed by two statements numbered I and II. The question may or may not be answered with the help of these statements. You have to decide if these statements are sufficient to answer the question.
Question: Is m =50?
Statements:
I) The average of m and n is 200.
II) m-n =30
a)Each statement alone is sufficient to answer the question.
b)Only one of the statements, alone , is sufficient to answer the question but other statement is not. c)Both Statement I and II together are sufficient to answer the question asked but neither statement alone is sufficient.
d)Statements I and II together are not sufficient to answer the question asked and additional data to the problem is needed.

Reply Like? Yes | No

(6 years ago)

c)Both Statement I and II together are sufficient to answer the question asked but neither statement alone is sufficient.

Like? Yes (1) | No

(6 years ago) "Other"

The sum of two numbers is ten. Their product is twenty. Can you find the sum of the reciprocals of the two numbers?

Reply Like? Yes | No

(6 years ago)

a+b=10
ab=20
1/a+1/b=(a+b)/ab=10/20=1/2

Like? Yes (3) | No

(6 years ago)

a+b=10
ab=20
1/a+1/b=(b+a)/ab=10/20=1/2

Like? Yes | No

to (6 years ago) "Other"

Give me suggestions how will i prepare for TCS written exam and what kind of questions comes in the exam is there any repetitive questions also comes in TCS exam...

Reply Like? Yes | No

to (6 years ago) "Other"

How to prepare elitmus exam plzzz tell me

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to (6 years ago) "Other"

sir, I am swathi I have Infosys campus placement drive on 10th jan,please guide me how to prepare for that specially in verbal section, my mail id is jaggarapuswathi923@gmail.com

Reply Like? Yes | No

(6 years ago) "Other"

If a2+b2-4(a+b)= -8,then the value of (a-b) is:

A)4
B)0
C)2
D)8

Reply Like? Yes | No

(6 years ago)

a^2-4a+4+b^2-4b+4=-8+8
(a-2)^2+(b-2)^2=0
a=2 b=2
a-b=0 => B)

Like? Yes | No (3)

(7 years ago) "Other"

x^2+y^2+z^2=6 ,x+y+z=3,and 1/x+1/y+1/z=1. then find (18xyz/3x+6y+z)

Reply Like? Yes | No

(7 years ago)

x^2+y^2+z^2=(x+y+z)^2-2xy-2xz-2yz 1/x+1/y+1/z=1 =>xy+xz+yz=xyz
6=3^2-2(xy+xz+yz)
2xyz=3
xyz=1.5

Like? Yes | No (2)

(7 years ago) "Other"

3&4=12,5&6=30 then 7&11=?
a)70 b)80 c)90 d)100

Reply Like? Yes (1) | No

(7 years ago) "Other"

I couldn't find today's puzzle question.please help me to find it.

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(7 years ago) "Other"

ramesh and suresh started journey from bangalore to chennai. ramesh starts at 1 30pm from bangaore and suresh starts 3pm at banglore and suresh over took ramesh at 6 pm and reaches at 9 pm at chennai.when will ramesh reached at chennai?

Reply Like? Yes | No

(7 years ago)

10:30 pm.

Let speed of Ramesh & Suresh be R & S respectively, then 4.5R = 3S
=> ratio of speeds = R : S = 2 : 3
So ratio of time = 3 : 2
As Suresh reached in 6 hrs, so Ramesh took 6*(3/2)=9 hrs.
Hence Ramesh will reach at (1:30pm +9 hrs) = 10:30 pm.

Like? Yes | No (2)

(7 years ago)

Suresh starts 3pm at banglore and Suresh over took Ramesh at 6 pm and reaches at 9 pm at chennai.
It means he overtook Ramesh at mid point of journey.
Ramesh completed half journey in 4.5 hrs and Suresh completed half journey in 3 hrs.
So Ramesh will complete whole journey in 9 hrs and he will reach Chennai at 10.30 PM.

Like? Yes (3) | No

(7 years ago) "Other"

Two shopkeeper sell a radio of similer brand and type at the same list of price of RS.1000.The first allows two successive discount 20% and 10% and the secound allows the successive discounts of 15% and 15% .Find the difference in discount offered by the two shopkeepers.

Reply Like? Yes (1) | No

(7 years ago)

SP of first shopkeeper = 1000*0.9*0.8= Rs 720
SP of second shopkeeper = 1000*0.85*0.85= 722.50
Difference in discounts = Rs 2.50

Like? Yes (1) | No

(7 years ago) "Other"

Please solve this...10 workers can make 15 boxes in 6 days how many boxes will 12 workers make in 3 days

Reply Like? Yes | No

(7 years ago)

M1*D1*H1/W1=M2*D2*H2
so, 10*6/15=12*3/x
x=9 boxes

Like? Yes | No (1)

(7 years ago)

9 boxes
15 boxes are made in 60 (10*6) man days.
1 box is made in 4 man days.
in 36 (12x3) man days , 36/4=9 boxes will be made.

Like? Yes (1) | No

(7 years ago)

10x6xN=15=> N=1/4 (N dayly work of 1 worker)
12x1/4x3=9

Like? Yes | No

(7 years ago) "Other"

I have registered for off campus drive of Syntel on 10th December. But till now i didn't get any mail from Syntel regarding exam date. So can anyone tell me when will be the Syntel exam

Reply Like? Yes | No

(7 years ago) "Other"

Decode it... Asd=45,Bsf=65,Rns=41 then usw=?

Reply Like? Yes | No

(7 years ago) "Other"

Can anyone suggest me the best aptitude course for job placement...

Reply Like? Yes | No

(7 years ago) "Other"

Ques. Four different electronic devices make a beep after every 30 minutes, 1 hour, 3/2 hour and 1 hour
45 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at:

Reply Like? Yes | No

(7 years ago)

After 21 hrs i.e. at 9 AM next day

Like? Yes (1) | No

(7 years ago)

LCM of 30,60,90,105 is 1260 minutes or 21 hrs.
so All the devices beeped together after 21 hrs i.e. at 9 AM next day

Like? Yes (1) | No

(7 years ago) "Other"

Hello, I’m Dipu. I’m a youtuber living in Jaleswar, India. I am a youtuber & I also do video making, and blogging Make andriod app devoloper and web design. I’m also interested in technology and website build. You can visit my channel # Dipu TechBC

Reply Like? Yes (1) | No

(7 years ago) "Other"

If a2+b2-4(a+b)= -8,then the value of (a-b) is:
A. 4 B. 0 C. 2 D. 8

Reply Like? Yes | No

(7 years ago)

a=b=2
a^2+b^2-4(a+b) = 4+4-4*4= -8
a-b=2-2=0

Like? Yes (1) | No

(7 years ago) "Other"

in a village 1200 people were there. every year 20% increases.what will be the population after 3 years?

Reply Like? Yes (1) | No

(7 years ago)

1200*1.2*1.2*1.2= 2073.6
so population after 3 years= 2073.

Like? Yes (1) | No

to (7 years ago) "Other"

what is the best way of learning aptitude can give guide to me

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