Question

Average age of 8 men is increased by 2 years when one man whose age is 20 years is replaced by a freshman. What is the age of the freshman?

Answer 1

Answer:

36

Step-by-step explanation:

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Answer 2

Answer:

36 years

Step-by-step explanation:

Let x be the Old average

Total age of 8 men = 8x

And man whose age is 20 is replaced (-20) with the person with Y years of age.

Then average increase by 2 years = x+2

For Total age of men after replacement = 8(x+2)

8x - 20 + y = 8(x + 2)

y = 16 + 20 = 36 years

(or)

New age of person replaced = age of person left + No of men * increase in average = 20 + 8*2 = 36