2012 RRB Ahmedabad

Question 53

5 years ago, average age of P and Q was 15 years. At present, average age of P, Q and R is 20 years. What will be the average age after 10 years ?

Solution

The average age increases with age. So, after 10 years, the average age is 20 + 10 = 30 years. 


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