Average age of 6 sons of a family is 8 years. Average of sons togeather with their parents is 22 years. If the father is older than the mother by 8 years, the age of mother in years is
A44
B52
C60
D68
Answer:
C. 60
Read Explanation:
Mother's age be x year
Father's age = x + 8 year
Sum of ages of 6 sons = 8 x 6 = 48 year
Sum of ages of 6 sons and parents 22 x 8 = 176 year
Age of parents = 176 - 48 = 128 year
x + x + 8 = 128
2x = 120, x=60
Hence Mother's age is 60 years