题目内容
有50吨沙子先取出它的
后,再增加它的
,这时沙子有多少吨?
| 1 |
| 5 |
| 1 |
| 5 |
50×(1-
)×(1+
),
=50×
×
,
=40×
,
=48(吨),
答:这时沙子有48吨.
| 1 |
| 5 |
| 1 |
| 5 |
=50×
| 4 |
| 5 |
| 6 |
| 5 |
=40×
| 6 |
| 5 |
=48(吨),
答:这时沙子有48吨.
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