Multiple choice

Karan, Arjun, Preeti, Priya and Ashish are travelling in a car. Three years ago, the average age of Arjun, Preeti and Priya was 42 years. If the present age of Karan is 65 years and the present average age of all five is 50 years, then what is the present age of Ashish?

  1. 50 years

  2. 60 years

  3. 70 years

  4. 80 years
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A Correct answer
Explanation

Sum of ages of Arjun, Preeti, Priya 3 years ago was 42*3 = 126. Their current sum is 126 + (3*3) = 135. Total sum of all 5 is 50*5 = 250. Ashish's age = 250 - 135 - 65 = 50.

AI explanation

Three years ago, the sum of the ages of Arjun, Preeti, and Priya was 42 times 3, which is 126 years. Their present combined age is 126 plus 9, which equals 135 years. The total present age of all five people is 50 times 5, equaling 250 years. Using the method of averages, Ashish's present age is 250 minus 135 minus 65, resulting in 50 years.

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