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Quant

This topic has 1 expert reply and 0 member replies
Noman Junior | Next Rank: 30 Posts
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Post Sun Jan 31, 2016 8:45 pm
plz explain
The average age of 8 people increases by 2 years when two women are included in place of two men aged 20 & 24. find the average age of the two women?
A.30 B.32 C.35 D.40 E.45

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sanju09 GMAT Instructor
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Post Fri Feb 05, 2016 12:07 am
Noman wrote:
plz explain
The average age of 8 people increases by 2 years when two women are included in place of two men aged 20 & 24. find the average age of the two women?
A.30 B.32 C.35 D.40 E.45
If the average age of 8 people increases by 2, then its total increases by 16. It means the ages 20 and 24 that sum up to 44 must have been replaced by a pair which sums up to 16 more than 44 that’s 60.

And their average, 30 (A)

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