the mean age of 5 men is 42, 1 woman is added to them. the mean age is 45, find the age of the woman
Mathematics · High School · Mon Jan 18 2021
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mean age of 5 men= 42
so, sum of their ages will be = 42*5=210
if one woman is added to them and now mean age is 45
so total members are now 6 and their mean age is 45 to sum of their ages= 45*6= 270
so now when 5 men have sum of their ages is 210 and when one woman is added to them, their ages sum will be 270
so woman age= sum of 5 men and one woman - sum of 5 men age
=270-210
woman age = 60 years