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The average weight of 16 boys in a class is 50.25 kgs and that of the remaining 8 boys is 45.15 kgs. Find the average weight of all the boys in the class.

Answer:

Explanation:

Required avrage = $\frac{50.25\times16+45.15\times8}{16+8}$
$=\frac{804+361.20}{24}=\frac{1165.20}{24}=48.55$