Mathematics, 17.07.2020 14:01 hidagiser

There are 15 boys and 10 girls in a hall, each holding coins in their hand. The mean number of coins for the children is 10 The mean number of coins for the boys is 8Work out the mean number of coins for the girls.

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There are 15 boys and 10 girls in a hall, each holding coins in their hand. The mean number of coins...

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