Question

A bag contains cards with numbers written on it form 1 – 80. A card is pulled out at random. Find the probability that the card shows a perfect square.

Answer 1

The number of cards written on it form 1 – 80 = 80

The numbers of all possible outcomes = 80

The number of cards shown a perfect square = 1, 4, 9, 16, 25, 36, 49, 64 i.e. 8 cards

Let E be event of shows a perfect square

Number of outcomes to favourable E = 8