Question
The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.
Answer: Option C
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Required average = \(\left(\frac{50.25\times16+45.15\times8}{16+8}\right)\)
\(=\left(\frac{804+361.20}{24}\right)\)
\(=\frac{1165.20}{24}\)
= 48.55
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