The average age of 8 persons in a committee is increased by 2 years when two men aged 30 years and 5...........

Quantitative Aptitude (CDS) Average

The average age of 8 persons in a committee is increased by 2 years when two men aged 30 years and 50 years are substituted by two women. Find the average age of the two women?

50 yr

48 yr

52 yr

60 yr

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Explanation:

let average age of 8 person is x

total age is 8x,

remaining total age =8x-80

let two women's age is =w

average age increased by 2

x+2 =( 8x-80+w)/8

8x+16=8x-80+w

w=96

average age of two woman is =96/2

=48 yr

By: bhavesh kumar singh

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The average age of 8 persons in a committee is increased by 2 years when two men aged 30 years and 5...........

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