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Frequently Asked Infosys Numerical Ability - Probability Interview Questions with Answers

(#M40032775) INFOSYS QUESTION Apti Keep an EYE

15 tennis players take part in a tournament. Every player plays twice with each of his opponents. How many games are to be played?

A. 190
B. 200
C. 210
D. 220
E. 225

Asked In Infosys Utsav Burman (11 years ago)

Solved Anand Read Solution (14)

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(#M40153803) INFOSYS QUESTION probability Keep an EYE

1. There are 4 baskets. The first basket has 3 apples and 4 oranges, the second one has 4 apples and 5 mangoes, the third one has 6 Mangoes and 2 bananas and the last one has 7 bananas and 2 apples. If a fruit is randomly chosen from any basket and it comes out to be an apple, then what is the probability that it was taken out from the second basket?

Asked In Infosys ritu (10 years ago)

Unsolved Read Solution (11)

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(#M40033912) INFOSYS QUESTION Permutation and Combination Keep an EYE

A Jar contains 18 balls. 3 blue balls are removed from the jar and not replaced.Now the probability of getting a blue ball is 1/5 then how many blue balls jar contains initially?

Asked In Infosys NagaRaj SV (11 years ago)

Solved krishna Read Solution (14)

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(#M40032515) INFOSYS QUESTION Probability Keep an EYE

There are 1000 junior and 800 senior students in a class.And there are 60 sibling pairs where each pair has 1 junior and 1 senior.1 student is chosen from senior and 1 from junior randomly.What is the probability that the two selected students are from a sibling pair?

Asked In Infosys Satyaranjan (11 years ago)

Solved sameer Read Solution (6)

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(#M40004770) INFOSYS QUESTION infosys latest puzzle Keep an EYE

There are 4 balls and 4 boxes of colours yellow, pink, red and green. Red ball is in a box whose colour is same as that of the ball in a yellow box. Red box has green ball. In which box you find the yellow ball?

Asked In Infosys (13 years ago)

Unsolved Read Solution (3)

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(#M40037864) INFOSYS QUESTION quants Keep an EYE

40!^40! will end in how many zeroes?
40!
8 x 40!
9 x 40!
8^40!

Asked In Infosys akib (11 years ago)

Solved Saraswathy Read Solution (15)

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(#M40005114) INFOSYS QUESTION infosys latest puzzle Keep an EYE

In a box there are 40 clothes. 20% of the clothes are blue and the rest are white. What is the minimum number of clothes that must be taken without looking in order to be certain that there must be at least two of them which must be white?
a)19
b)12
c)15
e)10
f)11

Asked In Infosys (13 years ago)

Unsolved Read Solution (1)

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(#M40000057) INFOSYS QUESTION Keep an EYE

Persons A and B. Person A picks a random no. from 1 to 1000.Then person B picks a random no. from 1 to 1000. What is the probability of B getting no. greater then what A has picked.

Asked In Infosys (15 years ago)

Solved Tijo Jose Read Solution (5)

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(#M40005145) INFOSYS QUESTION infosys latest puzzle Keep an EYE

A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:
a)1/22
b)3/22
c)2/91
d)2/77

Asked In Infosys (13 years ago)

Unsolved Read Solution (3)

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(#M40024438) INFOSYS QUESTION Keep an EYE

Five sticks of length 1cm, 2cm, 4cm, 5cm, 7cm are given. Three sticks are drawn at random. What is the probability that a triangle is formed?

Asked In Infosys asxa asxaxax (12 years ago)

Unsolved Read Solution (3)

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