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

Two non negative integers are chosen at random. Find the probability that sum of their squares is divisible by 5.

Two non negative integers are chosen at random, find the probability that the sum of the squares is divisible by 11.

A positive integer is chosen at random . The probability that sum of the digits of its square is 33 is :

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

An integer is chosen at random from 1 to 50. Find the probability that the number is: divisible by 5

If 5 positive integers are taken at random and multiplied together. The probability that the last digit of the product is 2,4,6,8 is