7. A person’s present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?
A. 48 years
B. 40 years
C. 32 years
D. 36 years
7. A person’s present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?
A. 48 years
B. 40 years
C. 32 years
D. 36 years