Question

(mack-SP)Qual o valor de 0,2•0,7-4•0,01
___________
0,5•0,2

a)0,1
b)0,01
c)1
d)10

Answer 1

$\frac{0.2 \times 0.7 - 4 \times 0.01}{0.5 \times 0.2} \\ \\ \frac{0.14 - 0.04}{0.1} \\ \\ \frac{0.1}{0.1} = 1$
Alternativa C.

Answer 2

Pelos meus calculos, a resposta correta seria a letra C.