In a lottery there were 90 tickets numbered 1 to 90. Five tickets were drawn at random. The probability that two of the tickets drawn numbers 15 and 89 is

An um contains 30 tickets numbered 1 to 30 two tickets are drawn at random the probability that both the numbers are prime is

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

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

In a Iottery of 50 tickets numbered 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 :None of the tickets drawn has prime number.

In a lottery of 100 tickets numbered 1 to 100 two tickets are drawn simultaneously , find the probability that none of the tickets drawn has a 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.

In a lottery of 50 tickets numbered 1 to 50, two tickets are drawn simultaneously. Find the probability that: (a) both the tickets drawn have prime numbers. (b) none of the tickets drawn has prime number. (c) one ticket has prime number.