Question

A two digit number can be obtained by using the expression (10a+b). , where a and b are the ten’s and unit’s digits respectively. The number after reversing the digits will be (10b+a).Write a program to input two digits of a number(a and b) and display the result when the sum of the number is divided by the difference between its digits. Sample input: 62 Sample output: 22

Answer 1

Answer:

Let the tens place digit be x.

The units place digit is 3.

∴ Number = (10x + 3) ... (1)

Given:

7( x + 3) = (10 x + 3)

7 x + 21 = 10 x + 3

∴ 10 x - 7x = 21 - 3

⇒ 3 x = 18

or x = 6

Using x = 6 in equation (1):

The number is 63.

Explanation:

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