Question

两筐苹果一共140个，甲筐苹果的8分之3等于乙筐苹果的2分之1.甲、乙两筐苹果个有多少个？

Answer 1

解：设甲筐苹果有x个
3/8x=（140-x）×1/2
3/8x=70-1/2x
3/8x+1/2x=70
7/8x=70
x=70÷7/8
x=80
乙筐苹果数=140-80=60个
答：甲筐有80个苹果、乙筐有60个苹果

Answer 2

甲的个数占乙的﹙1÷3/8﹚÷﹙1÷1/2﹚＝8/3÷2＝4/3
140÷﹙1＋4/3﹚＝140÷7/3＝60个。乙筐有60个
140－60＝80个。甲筐有80个。

Answer 3

3/8:1/2=3:4 甲:140*4/(3+4)=80个 乙:140*3/(3+4)=60个