Question

Quanto é 13% de 27 ? com conta valendo 10 pontos !!

Answer 1

100 - 27
13 - X

100X = 27.13
100x = 351
X = 351/100
X = 3,51

Answer 2

27-------100%
X-------13

27/x= 100/13
100x= 351
X= 351/100
X=3,51