Question

A number is such that, it is as much greater than 65 as it is less than 91. Find the number.

Answer 1

Let the number is x

Let y is the value by which number x is greater than 65

y = x - 65

Given number is such that, it is as much greater than 65 as it is less than 91.

Value by which x is less than from 91 is also y

y = 91-x

91-x = x-65

91+65 = x+x

156 = 2x

x = 156/2

x = 78

Answer : 78