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4 years, 2 months ago
4 years, 2 months ago
wt of 16 boys = 16*50.25 = 804
wt of 8 boys = 45.15*8 = 361.2
total wt = 804+361.2 = 1165.2
av wt = 1165.2/24 = 48.55kg
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