Question

3.2比0.4等于0.16比X (1-37.5)X等于八分之五

Answer 1

3.2：0.4=0.16：X

3.2X=0.16×0.4

3.2X=0.064

X=0.02

(1-37.5%)X=八分之五

5/8X=5/8

X=5/8÷5/8

X=1