(1) | 5 8 25 64 62.5 |
(2) | 1/7 2 |
(3) | (a-1)/a a/a |
(4) | 120 5/6 |
(5) | 小明 |
(6) | 1/15 1/18 1/21 |
(7) | 96 |
(8) | 1/2 2 |
(1) |
(320-8)÷320
=312÷320
=97.5%
|
(2) |
600×(1-97.5%)
=600×2.5%
=15(个)
|