28. 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.
A. 47.55 kg B.48 kg
C. 48.55 kg D.49.25 kg
Answer: Option C
Explanation:
Required average
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=
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50.25 x 16 + 45.15 x 8
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16 + 8
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= 48.55
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