Question

21/2 tonnes of Sand are to be shared between a number of Builders one of them receives 4/7 of the total and the remaining sand is shared by 3 builders how much does the 4th builder receive and how much sand does each of the other 3 builders receive

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Answer 1

the 4th builder receive 6 tons of sand and the each of the three builders receive 1.5 tons of sand