The present age of shanthi and keerthi are in the ratio of 7 : 3. After 5years, Shanthi's age will be 40. How old will keerthi be after 5 years?
A20 years
B10 years
C15 years
D30 years
Answer:
A. 20 years
Read Explanation:
Present age of shanthi and keerthi are in the ratio of 7 : 3.
Let Age of Shanthi = 7x
Keerthi = 3x
After 5years, Shanthi's age will be 40
7x+5=40
7x=35
x=5
Age of keerthi = 3x = 3 x 5 =15 years
After 5 years age of keerthi = 15+5=20years.