Multiple choice

Three years ago the average age of Mohan’s family having 5 members was 17 years. Mohan becomes father but the average age of his family is same today. What is the present age of baby?

  1. 1 year

  2. 2 years

  3. 3 years

  4. 4 years

  5. 5 years

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Three years ago, 5 members had average age 17, so total age was 5×17=85 years. Today (after 3 years), those 5 members are 3 years older each: 85+15=100 years. Current family has 6 members with same average (17 years), so total age is 6×17=102. Baby's age = 102-100=2 years.