题目内容
男学生人数占全班人数的
,那么女学生与男学生人数的比是( )
| 8 |
| 15 |
| A.8:7 | B.7:8 | C.7:15 |
(1-
):
,
=
:
,
=(
×15):(
×15),
=7:8;
故选:B.
| 8 |
| 15 |
| 8 |
| 15 |
=
| 7 |
| 15 |
| 8 |
| 15 |
=(
| 7 |
| 15 |
| 8 |
| 15 |
=7:8;
故选:B.
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题目内容
| 8 |
| 15 |
| A.8:7 | B.7:8 | C.7:15 |
| 8 |
| 15 |
| 8 |
| 15 |
| 7 |
| 15 |
| 8 |
| 15 |
| 7 |
| 15 |
| 8 |
| 15 |