Question

The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother?

Answer 1

Answer:

The average age of the mother and her six children is 12 years

Total sum of age = 12*(1+6)

= 12*7 = 84

The average is reduced by 5 years if the age of the mother is excluded.

So the sum of age of children

= 6*(12-5)

= 6*7 = 42

Finally age of mother is,

84 - 42 = 42 years