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Question
the average age of 8 persons in a committee is increased by 2 years when two men aged 35 years and 45 years are substituted by two women. the average age of these two women is
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Answer
let x be the total average and y be the age of women
x+2=[8x-(45+35)+y]/8
8x+16=8x-80+y
y=96
average of women=96/2=48..
