The ratio of A’s present age with A’s age 10 years from now is 4 : 5. What is A’s present age?

The ratio of A’s present age with A’s age 10 years from now is 4 :

1.	The ratio of A’s present age with A’s age 10 years from now is 4 : 5. What is A’s present age?
A.	35 years
B.	45 years
C.	30 years
D.	40 years
Answer» E.