Question

2 Represete forma de percentagem ?

a ) 2 /20

b ) 8 / 50

c ) 3 / 4
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Answer 1

Resposta:

C) 3/4 x 100 = 75%

B) 8/50 x 100 = 16%

% / 100 = 8 / 50

% x 50 = 8 x 100

% = 8 x 100 / 50 = 16%

A) 2/20 x 100 = 10%

% / 100 = Parte / Todo

% / 100 = 2 / 20

% x 20 = 2 x 100

% = 2 x 100 / 20 = 10%