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averages doubt

 
Harsh Kumar
(@theharshkashyap)
Active Member

how to do this sum with conventional method?

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Topic starter Posted : 20/12/2021 12:36 am
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Rahul Singh
(@rahul)
Admin

Hi Harsh

The Conventional Mehthod is as follows-

The total age in the starting  was 90X20 = 1800

But after replacement total age is 86x20 = 1720

Difference is 80

Now 80 is reduced due to replacement and earlier the average was 90 so the new person must be 80 less from the previous one hence the new person's age is 10

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Posted : 24/12/2021 3:01 pm
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