"The average age of the mother and her six children is 12 years which is reduced
Channel: Doubtnut
Date: 2020-04-05

"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?
(a) 40
 years (b) 42 years (c) 48 years (d) 50 years"