题目内容
甲乙丙的平均数是23,甲比乙是2:9,甲比丙是9:3,求甲乙丙分别是k少?
甲:乙=2:3=6:9,
甲:丙=3:4=6:8,
所以甲:乙:丙=6:9:8,
甲:24×3×
=72×
=
,
乙:24×3×
=72×
=
,
丙:24×3×
=72×
=
;
答:甲数是
,乙数是
,丙数是
.
甲:丙=3:4=6:8,
所以甲:乙:丙=6:9:8,
甲:24×3×
| 6 |
| 6+9+8 |
| 6 |
| 23 |
| 432 |
| 23 |
乙:24×3×
| 9 |
| 6+9+8 |
| 9 |
| 23 |
| 648 |
| 23 |
丙:24×3×
| 8 |
| 6+9+8 |
| 8 |
| 23 |
| 576 |
| 23 |
答:甲数是
| 432 |
| 23 |
| 648 |
| 23 |
| 576 |
| 23 |
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