题目内容
一段布,用去它的
,就剩下15米;若用去它的
,则用去______米.
| 3 |
| 4 |
| 3 |
| 5 |
15÷(1-
)×
,
=15÷
×
,
=60×
,
=36(米);
答:用去了36米.
故答案为:36.
| 3 |
| 4 |
| 3 |
| 5 |
=15÷
| 1 |
| 4 |
| 3 |
| 5 |
=60×
| 3 |
| 5 |
=36(米);
答:用去了36米.
故答案为:36.
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