题目内容
一项工程,单独做甲队要8天,乙队要10天.甲队和乙队的工效比是( )
| A.8:10 | B.5:4 | C.
| D.4:5 |
(1÷8):(1÷10),
=
:
,
=(
×40):(
×40),
=5:4;
故选:B.
=
| 1 |
| 8 |
| 1 |
| 10 |
=(
| 1 |
| 8 |
| 1 |
| 10 |
=5:4;
故选:B.
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题目内容
| A.8:10 | B.5:4 | C.
| D.4:5 |
| 1 |
| 8 |
| 1 |
| 10 |
| 1 |
| 8 |
| 1 |
| 10 |