Question

A number is as much greater than 21 as it is less than71 . find the number

Answer 1

Let the number be x then :

The number greater than 21 is :

x - 21

The number less than 71 is :

71 - x

Equating the two :

71 - x = x - 21

-2x = - 21 - 71

2x = 92

x = 92/2

x = 46