Practice Questions on Probability
Aptitude Questions and Answers

Moderate Probability Question - 31

Q31.

There are 6 positive and 8 negative numbers. Four numbers are chosen at random and multiplied. The probability that the product is a positive number is:

A.

500/1001

B.

503/1001

C.

505/1001

D.

101/1001

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Moderate Probability Question - 32

Q32.

A bag contains 2 red, 3 green and 2 blue balls are to be drawn randomly. What is the probability that the balls drawn contain no blue ball?

A.

5/7

B.

10/21

C.

2/7

D.

11/21

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Moderate Probability Question - 33

Q33.

A number is selected at random from first thirty natural numbers. What is the chance that it is a multiple of either 3 or 13?

A.

17/30

B.

2/5

C.

11/30

D.

4/15

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