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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.


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