17点5吨比20吨少百分之几?

2025-06-26 15:11:54
推荐回答(2个)
回答1:

=(20-17.5)÷20×100%
=2.5÷20×100%
=0.125×100%
=12.5%

回答2:

(20-17.5)÷20
=2.5÷20
=12.5%