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Two boys have 480 marbles between them. One arranges them in heaps of 6 marble and the other in heaps of 9 each. If the total no. of heaps is 72, how many

marbles does each have?


Let there be n heaps of 6 marbles each, then there are (72 - n) heaps of 9 marbles each.
Hence total marbles  = 6n + (72-n)x9 = 480 ==> n = 56

Hence one has 56x6 = 336 marbles and the other has (72-56)x9 = 144 marbles
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