Question 51

A gift box consists of 10 rings. The average weight of the first 4 rings is 37 grams and the average weight of the remaining 6 rings is 38 grams. Find the average weight of the total rings.(in grams)

Solution

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Average weight of first 4 rings = 37 grams

=> Weight of first 4 rings = $$37\times4=148$$ grams

Similarly, weight of remaining 6 rings = $$38\times6=228$$ grams

$$\therefore$$ Average weight of the total rings = $$\frac{148+228}{10}=37.6$$ grams

=> Ans - (B)

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