题目内容
40千克的牛奶增加它的
后,再减少
,结果还是40千克.______.
| 1 |
| 5 |
| 1 |
| 5 |
40×(1+
)×(1-
),
=40×
×
,
=48×
,
=38.4(千克),
38.4<40,
故答案为:×.
| 1 |
| 5 |
| 1 |
| 5 |
=40×
| 6 |
| 5 |
| 4 |
| 5 |
=48×
| 4 |
| 5 |
=38.4(千克),
38.4<40,
故答案为:×.
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