Question

The average age of a committee of 6 is 40. If a member aged 30 resigns and a person aged 21 becomes a member, then the average age of the new committee is ?​

Answer 1

Answer:

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Step-by-step explanation:

Sum of 6 members = 40 X 6 = 240 years

∴sum of remaining 5 members = 200 – 30 =210 years

New sum of 6 members = 210 + 21 = 231 years

∴ Average age of new committee = 231/6= 38.5 years

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