• Placement Questions

Frequently Asked Interview Questions and Answers

(#M40001105) TCS QUESTION Keep an EYE

One card is drawn from a well shuffled deck of 52 cards:
Finds the probability of getting i)a king of red color
ii)a black card

Asked In TCS Ragini (14 years ago)

Solved Pratik Jana Read Solution (9)

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

(#M40001104) TCS QUESTION Keep an EYE

There is Ferarri and a Benz car.Benz speed is 10km/h and it covers 10 km. if the Ferarri goes 3 times faster than benz,in how much time Ferarri would take to cover the same distance?

Asked In TCS Ragini (14 years ago)

Solved roopa Read Solution (9)

Is this Puzzle helpful?   (8)   (4) Submit Your Solution

(#M40001102) TCS QUESTION Keep an EYE

One grandfather has three grandchildren, two of their age difference is 3, eldest child age is 3 times youngest child's age and eldest child's age is two times of sum of other two children. what is the age of eldest child?

Solution

Question data are wrong.
According to ours consideration

The 2nd condition given is wrong it should be two more than the age of other two children...

Let the three grandchildren age be a,b and c
Thus, a is youngest, c is eldest.
c = 3a.........(i)
c = 2+(a+b)..........(ii)
=> 3a = 2+a+b
=> 2a = 2+b
Thus, the ages are.....
a, 2a-2 , 3a.

Two of their difference is 3.
Thus, a- 2 =3 or a+2 =3 or 2a =3
a =5 or a =1 or a =3/2.

Thus ages are, 5,8,15
or , 1,0 3 (not possible). or 3/2, 1, 9/2 (not possible.).
The answer should be 15.
This answer is given by SATYAJIT KR CHOUDHARY and is the correct answer

Like manish sir answer on facebook.

Asked In TCS Ragini (14 years ago)

Solved Read Solution (2)

Is this Puzzle helpful?   (4)   (5) Submit Your Solution

(#M40001119) TCS QUESTION Percentage Keep an EYE

A,B,C are the mechanisms used seperately to reduce the wastage of fuel by 30%,40%,10%.What will be the fuel economy?

Asked In TCS smita dasgupta (14 years ago)

Solved suchandra raavi Read Solution (4)

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

(#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

(#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

(#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

(#M40001063) TCS QUESTION Keep an EYE

There is a doll that can make 2 musical sounds. it makes 2 musical sounds after being defective. what is the probability that the same musical sound would be produced 5 times consecutively?

Solution

There are two sounds A and B,
In first chance the doll can produce any of the two sounds so probability = 1
After that for making the same sound to be produced, probability = 1/2
similarly for the other chances thus answer will be 1*(1/2)*(1/2)*(1/2)*(1/2) = 1/16

Like manish sir answer on facebook.

Asked In TCS Ragini (14 years ago)

Solved Read Solution (3)

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

(#M40001056) TCS QUESTION Keep an EYE

if a person moves 15km straight and turns 45 km right and moves 15km straight again,then how much distance does he need to walk to reach the starting point?

Solution

straight=15km,and right turn =45+15=60,
distance to the starting point = square root (15^2 + 60^2)=square root (3825)=61.85
this answer is given by KALPANA G and is the correct answer
Here it is to be informed that straight doesn't show any particular direction


Like manish sir answer on facebook.

Asked In TCS Ragini (14 years ago)

Solved Read Solution (5)

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

(#M40001052) TCS QUESTION Keep an EYE

The age of two people is in the ratio 6:6. if the sum of their ages is 44.after how many years would the ratio be 8:7?

Solution

The ratio given is 6:6 means both are same in age it means it will be impossible to make their age ratio 8:7
now if we consider the suggestion given by RISHABH, then
present ratio = 6:5 = 24:20 sum of ages = 44 so ages are 24 and 20
let after x years ratio will be 8:7 , so (24+x)/(20+x) = 8/7
on solving the equation we get x = 8

Like manish sir answer on facebook.

Asked In TCS Ragini (14 years ago)

Solved Read Solution (3)

Is this Puzzle helpful?   (7)   (0) Submit Your Solution