In a lottery of 50 tickets numbered from 1 to 50,two tickets are drawn
simultaneously.Find the probability that :None of the tickets drawn
has prime number.

In a lottery of 50 tickets numbered from 1 to 50,two tickets are drawn simultaneously.Find the probability that : Both the tickets drawn have prime numbers.

Three dice are thrown simultaneously. Find the probability that all the three dice show the same number.

Tickets numbered from 1 to 20 are mixed up together and then a ticket is drawn at random. Find the probability that the ticket drawn has a number which is a multiple of 3 or 7.

Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?

Tickets numbered from 1 to 20 are mixed up together and then a ticket is drawn at random. What is the probability that the ticket has a number which is a multiple of 3 or 7 ?

One card is drawn at random from a pack of 52 cards.Find the probability that the card drawn is a red ace.

One card is drawn at random from a pack of 52 cards.Find the probability that the card drawn is an ace.

Cards marked with the numbers 2 to101 are placed in a box and mixed thoroughly. One card is drawn from this box. Find the probability that the number of the card is a prime number less than 25.

One card is drawn at random from a pack of 52 cards.Find the probability that the card drawn is red or an ace.