问题
填空题
比40米多25%是______米;30吨比______吨少20%.
答案
(1)40×(1+25%),
=40×1.25,
=50(米);
(2)设30吨比x吨少20%,
(1-20%)x=30,
80%x=30,
x=37.5;
故答案为:50、37.5.
比40米多25%是______米;30吨比______吨少20%.
(1)40×(1+25%),
=40×1.25,
=50(米);
(2)设30吨比x吨少20%,
(1-20%)x=30,
80%x=30,
x=37.5;
故答案为:50、37.5.