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Frequently Asked TCS Numerical Ability - Probability Interview Questions with Answers

(#M40012761) TCS QUESTION Keep an EYE

in an office, at various times during the day, the boss gives secretary a letter to type , each time putting the letter on top of the secretary's inbox. when there is time, the secretary takes the top letter off the pile and type it. if there are 5 letters in all and boss delivers them in the order 12345, which of the following could not be the order in which secretary types them?
a) 24351
b) 45231
c) 32415
d) 12345

Asked In TCS Divya Malhotra (10 years ago)

Unsolved Read Solution (19)

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(#M40024556) TCS QUESTION Keep an EYE

6 positive integers are taken at random and multiplied together. Then what is the probability that products ends in an odd digit other than 5?

Asked In TCS nikhil pande (9 years ago)

Unsolved Read Solution (13)

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(#M40011030) TCS QUESTION DICE Keep an EYE

Four friends namely Rahul, Ravi, Rajesh and Rohan contested for a dairy milk chocolate. To decide which friend will get the chocolate they decided to throw two dice. Every friend was asked to choose a number and if the sum of the numbers on two dice equals that number, the concerned person will get the chocolate. Rahul's choice was7, Ravi's choice was 9, Rajesh's choice was 10 and Rohan's choice was 11. Who has the maximum probability of winning the amount.

a) Rahul b) Ravi c) Rajesh d) Rohan

Asked In TCS vilas mallikarjun patil (10 years ago)

Unsolved Read Solution (8)

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(#M40001717) TCS QUESTION 2010 question Keep an EYE

There are two boxes, one containing 10 red balls and the other containing 10 green balls. You are allowed to move the balls between the boxes so that when you choose a box at random and a ball at random from the chosen box, the probability of getting a red ball is maximized. This maximum probability is
a)1/2 b)14/19 c)37/38 d)3/4

Asked In TCS (11 years ago)

Solved Dr.Dipin Singh Read Solution (7)

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(#M40157452) TCS QUESTION probability Keep an EYE

A bag contains 1100 tickets numbered 1, 2, 3, ... 1100. If a ticket is drawn out of it at random, what is the probability that the ticket drawn has the digit 2 appearing on it?

A. 291/1100
B. 292/1100
C. 290/1100
D. 301/1100

Asked In TCS kulvant singh (6 years ago)

Unsolved Read Solution (14)

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(#M40033561) TCS QUESTION tcs apptitude question Keep an EYE

2/3rd of the balls in a bag are blue, the rest are pink. if 5/9th of the blue balls and 7/8th of the

pink balls are defective, find the total number of balls in the bag given that the number of non

defective balls is 146.

a) 216 b) 649 c) 432 d) 578

Asked In TCS (9 years ago)

Unsolved Read Solution (11)

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(#M40154821) TCS QUESTION Keep an EYE

100 students appeared for two different examinations 60 passed the first,50 the second and 30 both the examinations.Find the probability that a student selected at random failed in both the examination
a)5/6 b)1/5 c)1/7 d)5/7

Asked In TCS Rik (7 years ago)

Unsolved Read Solution (12)

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(#M40002300) TCS QUESTION Keep an EYE

There are two boxes, one containing 21 red balls and the other containing 25 green balls. You are allowed to move the balls between the boxes so that when you choose a box at random and a ball at random from the chosen box, the probability of getting a red is maximized. This maximum probability is
(a) 0.5 (b) 0.63 (c) 0.72 (d) 0.48

Asked In TCS anandhan (11 years ago)

Solved deepak deora Read Solution (3)

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(#M40033672) TCS QUESTION Keep an EYE

Q). A Programmer noted the results of attempting to run 20 programs. The results that 2 programs run correctly in the first attempt, 7 programs run correctly in the second attempt, 5 programs run correctly in the third attempt, 4 programs run correctly in the fourth attempt and 2 programs run correctly in the fifth attempt. What is the probability that this next program will run correctly on the third run ?

1) 1⁄4
2) 1⁄3
3) 1⁄6
4) 1⁄5

Asked In TCS ravikiran (9 years ago)

Unsolved Read Solution (4)

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(#M40000576) TCS QUESTION Keep an EYE

30 teams enter a hockey tournament.A team is out of the tournament if it loses 2 games. What is the maximum number of games to be played to decide one winner?
a) 61
b) 59
c) 30
d) 60

Asked In TCS YadeeshKumar (12 years ago)

Solved viknesh sankar Read Solution (4)

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