Question

A box contains 30 discs which are number from 1 to 30 if one disc is drawn random from the box find the probability that (1) two digit number (2)a perfect square

Answer 1

Step-by-step explanation:

Probability of an event is defined as the ratio of favorable outcomes to that of the total outcomes.

(i) Number of two-digit numbers in the range 1−30 is 21.

Hence, probability that the drawn disc is a two digit number is:

P1=3021=0.7

(ii) Number of perfect square numbers in the range 1−30 is 5.

Hence, probability that the drawn disc is a perfect square number is:

P2=305=0.167