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In a class, there are 30 boys and 20 gir...

In a class, there are 30 boys and 20 girls. The average weight of 30 boys is 60 kg and average weight of 20 girls is 35 kg. Find the average weight of the class.

A

40 kg

B

50 kg

C

60 kg

D

45 kg

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The correct Answer is:
B
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PEARSON IIT JEE FOUNDATION-RATIO AND ITS APPLICATIONS-CONCEPT APPLICATION (LEVEL 3)
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