Question

Quanto é 5% de 20,00?

Answer 1

R: 20/100%=0.2
0.2*5%= 1

OU 

100% ---- 20
 5%   ----- x

100x=100
x=100/100= 1

Answer 2

5% de 20 = 20 . 5 : 100 = 100:100 = 1
20% de 100 = 1