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
Answer: Option B
Solution (By Examveda Team)
Age of the mother= (12 × 7 - 7 × 6) years
= 42 years
This Question Belongs to Arithmetic Ability >> Average
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