Question

A box contains 30 tickets, bearing only one number from 1 to 30 on each. If one ticket is drawn at random, find the probability of an event that the ticket drawn bears a complete square number.

Answer 1

Total number of tickets  = 30

Number of tickets bearing perfect square number = 1, 4, 9, 16, 25
= 5

Therefore, required probability = `\text { Number of tickets bearing perfect number}/text { Total number of tickets}`

`=5/30`

`=1/6`

Hence, the probability that the ticket drawn bears a perfect square number is`=1/6`.