Mathematics, 27.02.2021 19:10, maxi12312345

A person buys certain number of marbles at 20 per rupee and an equal number at 30 per rupee. He mixes them and sells them at 25 per rupee. find His gain or loss in the transaction

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A person buys certain number of marbles at 20 per rupee and an equal number at 30 per rupee. He mixe...