The picture shows the ages of the six members of the Sharma family. Dadi leaves to live in Varanasi. By how many years does the mean age of the people left at home go down?

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Accepted Answer

7.4. Before: 64+40+36+12+8+2/6 = 162/6 = 27 . After: 162-64/5 = 98/5 = 19.6 . The mean drops by 27 - 19.6 = 7.4 years.

The picture shows the ages of the six members of the Sharma family. Dadi leaves to live in Varanasi. By how many years does the mean age of the people left at home go down?

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