40 is 20% of what number?

2 Answers
Nov 10, 2016

200

Explanation:

40/x = 20/100
40/x*100 =20/100*100

4000/x = 20

4000*x/x =20*x

4000 = 20x

4000/20 = (20*x)/20

200 = x

Nov 10, 2016

200.

Explanation:

The equation can be expressed as:

x xx20/100=40

Multiply both sides by 100/20.

x=40xx100/20

x=4000/20

x=200