• Placement Questions

Placement Papers with Solutions

(#M40001098) TCS QUESTION Keep an EYE

In a family there are some boys and girls.all boys told they are having equal no of brothers and sisters and girls told that they are having twice the no of brothers than sisters. how many boys and girls present in family?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (4)

Is this Puzzle helpful?   (1)   (1) Submit Your Solution

(#M40001097) TCS QUESTION Keep an EYE

A triangle is made from a rope.the sides of the triangle are A cm,B cm and C cm. what will be area of the square made from the same rope?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (3)   (1) Submit Your Solution

(#M40001096) TCS QUESTION Keep an EYE

A wire whose resistance is 132.44647 ohms,is used in an experiment. if a voltage of 30mv and a current of 296ma is applied to it, what is the resistance then?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (1)   (2) Submit Your Solution Age Problem

(#M40001095) TCS QUESTION Keep an EYE

there are 40 barreals are there and one is poisoned. If a drop is consumed he will die in 14 hrs then how many least mice are required to find the poisoned barreal?if we have only 24 hour.

Asked In TCS Krishna KAnt Tiwari (14 years ago)

Unsolved Read Solution (8)

Is this Puzzle helpful?   (5)   (3) Submit Your Solution Missing Character

(#M40001094) TCS QUESTION Keep an EYE

Q. 10 people meet and shake hands. The maximum number of handshakes possible if there is to be no "cycle" of handshakes is (A cycle of handshakes is a sequence of k people a1, a2, ......, ak (k > 2) such that the pairs {a1, a2}, {a2, a3}, ......, {ak-1, ak}, {ak, a1} shake hands).
7
6
8
9

Solution

If handshakes are taken in random manner then max. handshakes = 10*9/2*1 = 45
If all the persons are there in a straight line then number of handshakes = 10-1 = 9

Like manish sir answer on facebook.

Asked In TCS RISHI KUMAR (14 years ago)

Solved Read Solution (4)

Is this Puzzle helpful?   (12)   (1) Submit Your Solution Permutation and Combination

(#M40001093) TCS QUESTION Keep an EYE

Q. 36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the rest have shaken hands with at least one person in the set is
13
11
18
12

Solution

Answer 12 is correct.
because if we take person a1 in the set then it will cover a36 and a2 for shaking hand.similarly if we take person a4 in the set then it will cover a5 and a3 for shaking hand and so on, so minimum 12 persons are required to make shake hand with rest of the people complete


Like manish sir answer on facebook.

Asked In TCS RISHI KUMAR (14 years ago)

Solved Read Solution (2)

Is this Puzzle helpful?   (3)   (1) Submit Your Solution

(#M40001092) TCS QUESTION Keep an EYE

10 suspects are rounded by the police and questioned about a bank robbery. Only one of them is guilty. The suspects are made to stand in a line and each person declares that the person next to him on his right is guilty. The rightmost person is not questioned. Which of the following possibilities are true?
A. All suspects are lying or the leftmost suspect is innocent.
B. All suspects are lying and the leftmost suspect is innocent .
i> A only
ii> B only
iii> Both A and B
iv> Neither A nor B

Solution

if first is victim then all suspects are lying. here you should remember that the rightmost person is not questioned.
If any of the person leaving leftmost is victim then the leftmost suspect is innocent. but "and" should not be used between the conditions because leftmost is not innocent necessarily


Like manish sir answer on facebook.

Asked In TCS RISHI KUMAR (14 years ago)

Solved kapil Read Solution (3)

Is this Puzzle helpful?   (9)   (4) Submit Your Solution Decision Making and Problem Solving

(#M40001091) TCS QUESTION Keep an EYE

Q. For the FIFA world cup, Paul the octopus has been predicting the winner of each match with amazing success. It is rumored that in a match between 2 teams A and B, Paul picks A with the same probability as A's chances of winning. Let's assume such rumors to be true and that in a match between Ghana and Bolivia, Ghana the stronger team has a probability of 2/3 of winning the game. What is the probability that Paul will correctly pick the winner of the Ghana-Bolivia game?
2/3
1/9
5/9
4/9

Asked In TCS RISHI KUMAR (14 years ago)

Solved neerav Read Solution (4)

Is this Puzzle helpful?   (9)   (3) Submit Your Solution Cryptography

(#M40001090) TCS QUESTION Keep an EYE

A and B play a game between them. The dice consist of colors on their faces(instead of number). When the dice are thrown, A wins if both show the same color, otherwise B wins. One die has 3 red faces and 3 blue faces. How many red and blue faces should the other die have if the both players have if the both players have the same chances of winning?
a) 5 red and 1 blue faces.
b) 1 red and 5 blue faces.
c) 3 red and 3 blue faces.

Asked In TCS Anil (14 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (7)   (2) Submit Your Solution

(#M40001089) TCS QUESTION unsolved Keep an EYE

how many one rupee, 50 paisa, 25 paisa coins are there if there are in the ratio of 4:5:6 and together amount Rs 327?
a)60 b)45 c)75 d)90 e)30

Asked In TCS ROON (14 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (11)   (6) Submit Your Solution Time Distance and Speed

(#M40001088) TCS QUESTION Keep an EYE

Mr. Behera wants to build a house for his wife.In this there are 5 rooms each having equal area. the length of each room is 4m, breadth is 5m. the height of the rooms is 2m.if,to make a square meter,we need 17 bricks,then how many bricks are needed to make the floor of a particulr room?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (4)

Is this Puzzle helpful?   (9)   (6) Submit Your Solution Time Distance and Speed

(#M40001087) TCS QUESTION Keep an EYE

If a-b=5 and a*b is 26,then what is the sum of two squares?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (2)   (0) Submit Your Solution

(#M40001086) TCS QUESTION Keep an EYE

An athlete decides to run the same distance in 1/4th less time that she usually took. by how much percent will she have to increase her average speed?

Solution

let initial velocity = u and time taken = t
since athlete decides to run the same distance in 1/4th less time,
then new time taken will be t-(t/4) = 3t/4
let the new volocity = v
then for the same distance u*t = v*(3t/4) on solving we get v = 4u/3
so increment = 4u/3 - u = u/3
so % increment in speed = 33.33%


Like manish sir answer on facebook.

Asked In TCS Ragini (14 years ago)

Solved Read Solution (3)

Is this Puzzle helpful?   (18)   (6) Submit Your Solution Coding Decoding

(#M40001085) TCS QUESTION Keep an EYE

It is dark bedroom and i want to get two socks of the same color from my drawer, which contains 24 red and 24 blues socks.how many socks do i have to take from the drawer to get atleast two socks of the same color?
(a)2(b)3(c)48(d)25

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (4)

Is this Puzzle helpful?   (3)   (2) Submit Your Solution

(#M40001084) TCS QUESTION Keep an EYE

sangarkara and pointing selects batting by using a dice,but the dice is biased.so to resolve, pointing takes out a coin. what is the probability that the dice shows correct option?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (1)   (0) Submit Your Solution

(#M40001083) TCS QUESTION Keep an EYE

23 people are there, they are shaking hands together, how many hand shakes possible,if they are in pair of cyclic sequence.

Asked In TCS Ragini (14 years ago)

Solved kapil Read Solution (8)

Is this Puzzle helpful?   (21)   (4) Submit Your Solution Number System

(#M40001082) TCS QUESTION Keep an EYE

A block has dimensions 10,9,5 units.how many units cube is needed to make a block of that size?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (2)   (1) Submit Your Solution

(#M40001122) ACCENTURE QUESTION accenture question Keep an EYE

If V = 12R / (r + R) , then R =

Asked In Accenture kamran (14 years ago)

Solved reetesh kumar Read Solution (4)

Is this Puzzle helpful?   (6)   (2) Submit Your Solution Quadratic Equations

(#M40001081) TCS QUESTION Keep an EYE

Now pet's age is two times when paul was once.but at that time paul's age=pet's current age.how old is pet?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (0)   (6) Submit Your Solution Age Problem

(#M40001080) TCS QUESTION Keep an EYE

Entry ticket to an exhibition ranges from 1p to 31p. you need to provide exact change at the counter. you have 31p coin.in how many parts will you divide 31p so that you will provide the exact change required and carry as less coins as possible?

Asked In TCS Ragini (14 years ago)

Solved suchandra raavi Read Solution (9)

Is this Puzzle helpful?   (13)   (0) Submit Your Solution Algebra

(#M40001079) TCS QUESTION Keep an EYE

A game is played betwn 2 players and one player is declared as winner. all the winners from first round are played in second round.all the winners from second round are played in third round and so on.if 8 rounds are played to declare only one players as winner, how many players are played in first round?

Asked In TCS Ragini (14 years ago)

Unsolved Read Solution (13)

Is this Puzzle helpful?   (5)   (0) Submit Your Solution

(#M40001078) TCS QUESTION Keep an EYE

A metal strip of width 'X'cm. 2 metal strips are placed one over the other, then the combine length of 2 strips is 'Y'. if 'Z' strips are placed in that manner.what is the final width of that management?

Asked In TCS Ragini (14 years ago)

Solved Shrishailam Read Solution (15)

Is this Puzzle helpful?   (6)   (1) Submit Your Solution

(#M40001077) TCS QUESTION .... Keep an EYE

5) A sheet of paper has statements numbered from 1 to 70. For all values of n from 1 to 70. Statement n says ' At least n of the statements on this sheet are false. ' Which statements are true and which are false?

a) The even numbered statements are true and the odd numbered are false.
b) The odd numbered statements are true and the even numbered are false.
c) The first 35 statements are true and the last 35 are false.
d) The first 35 statements are false and the last 35 are false.

Solution

This question is based on at least, so truth of any statement (suppose nth) will imply the truth of all (n-1)th, (n-2)th,....... 1st statements, so the only possible answer will be c)
The first 35 statements are true and the last 35 are false.

Like manish sir answer on facebook.

Asked In TCS KUMAR SOUVIK MAJI (14 years ago)

Solved Read Solution (8)

Is this Puzzle helpful?   (37)   (13) Submit Your Solution Cryptography

(#M40001076) TCS QUESTION Keep an EYE

the citizen of planet OZ are 6 fingered and they developed the number system in base 6.A certain street in OZ has 1000 buildings and they are numbered 1 to 1000.How many no. of 3's are used?Express your answer in base 10.
a.144
b.54
c.108
d.36

Asked In TCS smita dasgupta (14 years ago)

Solved Ranvir Gupta Read Solution (6)

Is this Puzzle helpful?   (13)   (1) Submit Your Solution

(#M40001075) TCS QUESTION unpainted surfaces Keep an EYE

A hallow cube of 5cm is taken, with thickness of 1 cm.It is made of smaller cudes of 1 cm.If 5 faces of outer cude are painted,then totally how many smaller cubes surfaces reamin unpainted?
a)475 b)900 c)775 d)463

Asked In TCS payal gupta (14 years ago)

Solved RISHI KUMAR Read Solution (13)

Is this Puzzle helpful?   (5)   (1) Submit Your Solution

(#M40001074) TCS QUESTION Keep an EYE

THE AVERAGE TURNOVER OF A COMPANY IN JAN,FEB,MAR IS 12CRORE WHILE THAT OF MAR,APR,MAY,JUNE IS RS.14 CRORE. WHAT IS THE TURNOVER IN MARCH IF AVERAGE FOR THE FIRST HAF OF THE YEAR IS RS.12 CRORE

12CRORE

14CRORE

16CRORE

18CRORE

20CRORE

Asked In TCS tk (14 years ago)

Solved RISHI KUMAR Read Solution (11)

Is this Puzzle helpful?   (8)   (6) Submit Your Solution Mathematical Reasoning

(#M40001071) INFOSYS QUESTION Keep an EYE

In an IT company 35% of employees are given Development Department and 40% of employees are given Testing Department and 20% are given both.What is the probability for an employee is given Development or testing department
95%
55%
5%
none of these

Solution

Ans:-55%
(dUt)=d(n)+t(n)-dnt
=35+40-20


Like manish sir answer on facebook.

Asked In Infosys Somil Nain (14 years ago)

Solved Read Solution (3)

Is this Puzzle helpful?   (4)   (0) Submit Your Solution Probability

(#M40001070) TCS QUESTION Keep an EYE

Find the number of trailing Zeroes in 52!

Asked In TCS Somil Nain (14 years ago)

Solved Shrishailam Read Solution (4)

Is this Puzzle helpful?   (11)   (2) Submit Your Solution

(#M40001069) TCS QUESTION Keep an EYE

The Vertices of ABC are point A(1,2), B(4,6), C(-4,12). Which of the following is true?
a) ABC is not a Right ∆
b) It is a right ∆ with right angle at C
c) It is a right ∆ with right angle at B
d) It is a right ∆ with right angle at A

Asked In TCS Somil Nain (14 years ago)

Unsolved Read Solution (7)

Is this Puzzle helpful?   (3)   (0) Submit Your Solution

(#M40001068) TCS QUESTION Keep an EYE

There are certain numbers of hats and gloves in a box. they are 41 red,23 green,11 orange. power goes off. but a woman can differentiate betwn hats and gloves. how many draws are required to obtain a pair of each color.

Asked In TCS Ragini (14 years ago)

Solved Amrit Read Solution (9)

Is this Puzzle helpful?   (9)   (2) Submit Your Solution undefined