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Question
The average weight of a class of 50 students is 48.6 kg. If the average weight of the 20 boys is 54 kg, then find the average weight (in kg.) of the girls in the class.
Options
40
46
45
42
MCQ
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Solution
45
Explanation:
Now 30 – 5.4
`20 - 5.4/30 xx 20` = 3.6
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