There are 10 tickets numbered `0,1,2,3,.....9`. Two tickets are drawn at random. If the number obtained by writing the digits together is a perfect square then the probability that sum of digits is 9 is

There are 12 tickets numbered 1 to 12. A ticket is drawn at random. Find the probability that the number on this ticket is either a multiple of 3 or 4.

A bag contains 20 tickets numbered 1 to 20. Two tickets are drawn at random. Find the probability that both the numbers on the ticket are prime.

There are 40 tickets numbered 1 to 40 in a box. A ticket is drawn. What is the probability that the ticket drawn Bears a number which is a perfect square.

From 21 tickets numbered 1,2,3.,.,21 one ticket is drawn at random.Find the probability that the ticket drawn has a number divisible by 3.

There are 30 tickets numbered from 1 to 30 in a box and a ticket is drawn at random. If A is the event that the number on the ticket is a perfect square, then write the sample space S, n(S), the event A and n(A).

A bag contains 25 tickets numbered 1,2,3....25. One ticket is drawn at random, then what is the probability that the ticket drawn has a prime number?

A box contains 100 tickets numbered 1, 2, 3, ... ,100. Two tickets are chosen at random. It is given that the maximum number on the two chosen tickets is not more than 10. the minimum number on them is 2 with probability_________.

There are 25 tickets numbered from 1 to 25. A ticket is drawn at random. Find the probability that the number of that ticket is either a multiple of 2 or multiple of 3.