In 10 people's review By adding two women in place of two persons, the average age increases by three in the average age. What will be the average age of both men if the average age of those two women is 20 years?
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Average of 10 persons = x
age of 10 persons = 10x
Average of 8persons and 2 women = x + 3
Age of 8persons and 2women = 10(x+3) = 10x + 30
Average of 2women = 20
age of two women = 20 x 2 = 40
Age of 2 men = y
age of 8persons = 10x - y or 10x + 30 - 40
10x - y = 10x + 30 - 40
y = 10
Average of both men = 10/2 = 5
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