Respostas

2014-06-29T15:46:29-03:00
80 ----- 100
26 -----   x

x = 2600/80

x = 32,5%
2014-06-29T15:48:04-03:00
100%----80 acertos
X------26 acertos
80X=2600
X=2600/80
X=32,5% :)