题目内容
有15吨媒,第一次用去
,第二次用去
吨,还剩下______吨媒.
| 1 |
| 5 |
| 1 |
| 5 |
15×(1-
)-
=15×
-
=12-
=11
(吨)
答:还剩下11
吨媒.
故答案为:11
.
| 1 |
| 5 |
| 1 |
| 5 |
=15×
| 4 |
| 5 |
| 1 |
| 5 |
=12-
| 1 |
| 5 |
=11
| 4 |
| 5 |
答:还剩下11
| 4 |
| 5 |
故答案为:11
| 4 |
| 5 |
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