There are 100 cards numbered from 1 to 100 in a box. If a card is drawn from the box and the probability of an event is 1/2, then the number of favourable cases to the event is ________.

There are 10 cards numbered from 1 to 10 in a box. If a card is drawn randomly, then find the probability of getting an even numbered card.

Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn cards is (i) an odd number (ii) a perfect square number

A box contains cards numbered from 11 to 123. A card is drawn at random from the box. Find the probability that the number on the drawn card is: A square number

A box contains cards numbered from 11 to 123. A card is drawn at random from the box. Find the probability that the number on the drawn card is: a multiple of 7.

A box contains cards numbered from 13, 14, 15, ....., 60. A card is drawn at random from the box. Find the probability that the number on the drawn card is a prime number

Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find probability that the number on the card is (i) odd (ii) a perfect squrae (iii) divisible by 5 (iv) prime number < 20.

A box contains 20 cards marked with the number 1 to 20 . One card is drawn from this box at random. What is the probability of the following events : The number on the card is a perfect square.

A box contains 20 cards marked with the number 1 to 20 . One card is drawn from this box at random. What is the probability of the following events The number on the card is a perfect square.