The supermarket in RT Mart transported two cars of 3000 kilograms of fruit, one seventh of the first car = one fifth of the second car's weight. How many kilograms does each car weigh?

Let the first car be x kg and the second car be (3000-x)kg.

x/7 = (3000-x)/5

x/7 = 600 -x/5

12x/35 = 600

x= 1750

3000- 1750 = 3250

Answer: the first car 1750kg, the second car 3250kg.

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