The ratio between the ages of Appu and Ryan at present is 3:4 . Five years ago the ratio of their ages was 2:3. What is the present age of Appu?
A15 years
B20 years
C12 years
D30 years
Answer:
A. 15 years
Read Explanation:
The ratio of the ages of A and B at present is a:b, T years earlier the ratio was c:d then present age of A =
a x (T(c-d) / difference of cross product)
=3 x 5 (2 - 3)/ 9 - 8 = 3 x 5/1 =15