An integer is chosen at random and squared. Find the probability that the last digit of the square is 1 or 5.

An integer is chosen at random between 1 and 100. Find the probability that it is : divisible by 8

An integer is chosen at random between 1 and 100. Find the probability that it is : not divisible by 8

A positive integer is chosen at random the probability that the sum of the digits of its square is 39 is (A) 1/33 (B) 2/33 (C) 1/11 (D) Zero

If n integers taken at random are multiplied together, then the probability that the last digit of the product is 1, 3, 7 or 9 is

If n positive integers are taken at random and multiplied together, then the probability that the last digit of the product is 2,4,6 or 8, is

If n positive integers are taken at random and multiplied together, then the probability that the last digit of the product is 2,4,6 or 8 is

Two non negative integers are chosen at random. The probability that the sum of the square is divisible by 10, is