A book contains 85 pages. A page is chosen at random. What is the probability that the sum of the digits on the page is 8 ?

A book contains 32 pages. A page is chosen at random. What is the probability that the sum of the digits on the page is : (i) divisible by 2 (ii) divisible by 3. (iii) divisible by 5 (iv) divisible by 2 or 3 or 5 (v) divisible by 2, 3 and 5 ?

A book contains 92 pages. A page is chosen at random. What is the probability that the sum of the digits in the page number is 9?

A book contains 100 pages . A page is chosen at random . What is the chance that the sum of digits on the page is equal to 9 ?

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

On one page of a telephone directory, there were 200 telephone numbers. The frequency distribution of their unit place digit (for example, in the number 25828573, the unit place digit is 3) is given in Table: Without looking at the page, the pencil is placed on one of the numbers i.e the number it chosen at random. What is the probability that the digit in its unit place is 6?

Out of 20 consecutive numbers, two are chosen at random, the probability that their sum is odd is

Out of 40 consecutive integers, two are chosen at random, the probability that their sum is odd is

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

A bag contains 4 tickets numbered 00, 01, 10 and 11. Four tickets are chosen at random with replacement, the probability that the sum of numbers on the tickets is 22 is

Statement-1 : A natural number is chosen at random. The probability that the sum of the squares of its digits is 93, is 0. Statement-2 : A number is divisble by 31 iff sum of its digits is divisible by 31.