Averages Q.3

0. The average weight of 8 articles is 25 kg. If the average weight of 3 of them is 20 kg, then what is the average weight of rest of the 5 articles?

Answer
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Option : C
Explanation : Total weight of 8 articles = 200 kg
Total weight of 3 articles = 3 × 20 = 60 kg
Total weight of rest of 5 articles = 200 − 60 = 140 kg
Average weight of 5 articles = 140/5 = 28 kg

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