Question

The average age of 100 children is 7 years. Of them the average age of 25 children is 8 years and the
average age of 65 children is 6 years. Find the average age of remaining children.​

Answer 1

Answer:

Mean age of remaining 10 children = [(100×10)−(25×8)−65×11]10=8.5 years

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Answer 2

Answer:

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