12

Ganita Prakash

Probability

251+ practice questions available

Sample Practice Questions

5 questions shown — tap “Show Answer” to check yours.

1

easy

A die is thrown. Probability of getting a number divisible by 3 is:

A1/6

B1/3

C1/2

D2/3

2

easy

A die is rolled. Probability of getting a number less than 3 is:

A1/6

B1/3

C1/2

D2/3

3

medium

Two dice are thrown. Probability that neither shows a 1 is:

A1/36

B10/36

C11/36

D25/36

4

medium

Cards numbered 11 to 20 are put in a box. One card is drawn at random. Probability of an even number is:

A1/2

B2/5

C3/10

D3/5

5

medium

In a bag of 20 balls, 8 are red. If P(red) = 2/5, how many balls must be added (all non-red) to make P(red) = 1/4?

A8

B10

C12

D16

Practice all 251+ Probability questions

Adaptive difficulty, instant explanations, XP rewards, chapter mastery tracking.

Start Free — No Credit Card →