The average weight of boys in a class of total strength 50 is 40 kg while average weight of girls is 35 kg. Find
number of girls in class if average weight of class is 38 kg.
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The average weight of boys in a class of total strength 50 is 40 kg while average weight of girls is 35 kg. Find
number of girls in class if average weight of class is 38 kg.
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