Discussion of Question with ID = 025 under Problems-on-Ages

This is the discussion forum for this question. If you find any mistakes in the solution, or if you have a better solution, then this is the right place to discuss. A healthy discussion helps all of us, so you are requested to be polite and soft, even if you disagree with the views of others. The question and its current solution has also been given on this page.



After 5 years from today the ages of three friends will be in an AP(arithmetic progression), and their sum would be 99. What is the age of the middle friend today?


28 years.


29 years.


27 years.


30 years.

Ans: a

Let the ages after 5 years be a - d, a and a + d. The sum is given to us. So (a - d) + a + (a + d) = 3a = 99. We get a = 99/3 = 33. So, the age of the middle friend today is a - 5 = 28 years.

Comments and Discussion