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Workers delivered fruit to stores. In the first, they deposited a quarter of the shipment. In the second, a fifth of the shipment. In the third, two-fifths of the rest, and in the fourth, 231 kg. How many fruits were there altogether?

Correct answer:

x =  700 kg

Step-by-step explanation:

x/4+x/5+2/5·(x-x/4-x/5)+231 = x

6.6x = 4620

x = 4620/6.6 = 700

x = 700

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