The digits 1, 2, 3, 4, 5, 6, 7, 8, and 9 are written in random order to form a nine digit number.Let p be the probability that this number is divisible by 36, find 9p.

A five digit number is formed by writing the digits 1,2,3,4,5 in a random order without repetition. Then the probability that the number is divisible by 4 is

3 distinct integers are selected at random form 1, 2, 3, …, 20. find out the probability that the sum is divisible by 5

How many 3-digit numbers are divisible by 7?

Seven digits from the numbers 1 to 9 are written in random order. If the probability that this seven digit number divisible by 9 is p, then the value of 18p is

The three digit numbers are formed using the digits 0,2,4,6,8 . A Number is chosen at random out of these numbers . What is the probability that this number has the same digits ?

Three-digit numbers are formed using the digits 0,1, 2, 3, 4, 5 without repetition of digits. If a number is chosen at random, then the probability that the digits either increase or decrease, is

Find the sum of all 3 digit naturals which are divisible by 9.

From numbers 3, 5, 7, 7, 7, 9, 9, 9, 9, one number is selected at random. The probabilty that the selected number is mean, is given by:

How many 6 digit numbers can be formed from the digits 0,1,3,5,7,9 which are divisible by (i) 10, (ii) 5.