Question

20.25 is 112.5% of what number?
a) 18
b) 22.5
c) 25
d) 45

Answer 1

The number of which 20.25 is 112.5% is found by dividing 20.25 by 1.125, resulting in 18.

Step-by-step explanation:

To determine the number of which 20.25 is 112.5%, we set up a simple equation where 112.5% or 1.125 (when converted to a decimal) is multiplied by an unknown number (we'll call this number x).

The equation is as follows:
1.125 * x = 20.25

To find x, we divide both sides of the equation by 1.125:

x = 20.25 ÷ 1.125

When we do the calculation:

x = 18

Therefore, 20.25 is 112.5% of 18.