📐 Mathematics · Probability (Class 11) · JEE

A number is chosen at random from 1 to 25. The probability that it is a multiple of 5 is:

Answer: 1/5.

Correct answer: C. 1/5

Explanation: The multiples 5, 10, 15, 20 and 25 give 5 favourable outcomes from 25, so P = 5/25 = 1/5.

Concept context

Random experiments, sample space, events, and the axiomatic approach to probability