一批大米第一周吃去五分之二第二周吃去500千克还剩700千克共有多少客房?

2025-04-29 02:16:02
推荐回答(2个)
回答1:

(500+700)÷(1-2/5)
=1200÷3/5
=1200Ⅹ5/3
=2000(千克)

回答2:

(500+700)/(1-2/5)
=1200/(3/5)
=2000(千克)