A three-digit number is selected at random from the set of all three-digit numbers. The probability that the number selected has all the three digits same is

How many three-digit numbers are divisible by 7?

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

A page is selected at random from a book. The probability that the digit at units place of the page number chosen is less than 7 is

Three dice are thrown simultaneous . Find the probability of getting the same number on all the three dice.

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

Find the sum of all three-digit natural numbers, which are divisible by 7.

A 2n digit number starts with 2 and all its digits are prime, then the probability that the sum of all 2 consecutive digits of the number is prime is