There are two boxes of apples in a and B. the number ratio of apples in a and B is 7:5. Take 10 apples out of box a and put them into box B. the number ratio of apples in a and B is 3:5. How many apples are there in a and B? How many apples are there in each box?

There are two boxes of apples in a and B. the number ratio of apples in a and B is 7:5. Take 10 apples out of box a and put them into box B. the number ratio of apples in a and B is 3:5. How many apples are there in a and B? How many apples are there in each box?

If there were 7x in box a, there would be 5x in box B
7x-10：5x+10=3：5
therefore
5（7x-10）=3（5x+10）
35x-50=15x+30
20x=80
So x = 4
So the original number of box a is 4 × 7 = 28
Box B original 4 × 5 = 20
Two boxes of 20 + 28 = 48
Hope to adopt

The ratio of apples in a and B boxes is 5:3. R if a takes out 40 kg and puts it into B, the ratio of apples in a and B boxes is 3:2. How many kg are there in a and B boxes

Let a be 5 x kg and B be 3 x kg
5X-40：3X+40=3：2
3(3x+40)=2(5x-40)
9x+120=10x-80
x=200
Total = 200 * (5 + 3) = 1600 kg

For two boxes of apples, the ratio of the number of apples in box a to that in Box B is 5:3. If 14 apples are taken out of box a and put into Box B, the ratio of the number of apples in box a to that in Box B is 1:2. How many apples are there in each box?

Answer: there were 30 apples in box a and 18 apples in box B