A number of two digits is formed using the digits 1, 2, 3, …., 9. What is the probability that the number so chosen is even and less than 60?

A two digit number is formed with digits 2,3,5,7,9 without repetition. What is the probability that the number formed is an odd number ?

Form two digit numbers using the digits 0,1,2,3,4 without repeating the digits. Find the probability that the number so formed is greater than 30 .

A two digit number is formed with digits 2,3,5,7,9 without repetition. What is the probability that the number formed is a multiply of 5 ?

If two digit number are formed using the digits 0, 1, 2, 3, 4, 5 with repeating them, then n(S) =

A two digit number is formed with digits 2,3,5,7,9 without repetition. What is the probability that the number formed is: (i) an odd number? (ii) a multiple of 5?

The number of 7 digit numbers which can be formed using the digits 1, 2, 3, 2, 3, 3, 4 is

A two digit number is to be formed from the digits 0,1,2,3,4. Repetition of the digits is allowed. Find the probability that the number so formed is a prime number.

A two digit number is to be formed from the digits 0,1,2,3,4. Repetition of the digits is allowed. Find the probability that the number so formed is a multiple of 4.

A two digit number is to be formed from the digits 0,1,2,3,4. Repetition of the digits is allowed. Find the probability that the number so formed is a multiple of 11.

A two digit number is formed from the digits 0,1,2,3,4. Repetition of the digits is allowed. Find the probability that the number so formed is a: (i) prime number (ii) multiple of 4 (iii) multiple of 11.