the average weight of a group of boys and girls is 38 kg the average w | Examsbook

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3389 0

Q: The average weight of a group of boys and girls is 38 kg. The average weight of boys is 42 kg and that of girls is 33 kg. If the number of boys is 25, than the number of girls is…….

1
20
2
33
3
38
4
22

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Answer : 1. "20"

Maths Average Questions

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