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18 June, 20:41

There are 24 boys and 16 girls in a hall, each holding coins in their hand.

The mean number of coins for the children is 18

The mean number of coins for the boys is 12

Work out the mean number of coins for the girls.

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  1. 18 June, 23:43
    0
    27

    Step-by-step explanation:

    total=average * no.

    18*40=720 the no. of coins for all children

    12*24=288 no. of coins for boys

    720-288=432 for all girls

    one girl, mean, divide 432 by 16 = 27
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