3 years ago the average of Mohan rsquo s family having 5 members was 17 Presently there are six memb...........

Quantitative Aptitude(IBPS CL) Problems based on Ages

3 years ago, the average of Mohan’s family having 5 members was 17. Presently there are six members in the family but average age of Mohan’s family remains unchanged. Find age of the new member?

5 yrs

3 yrs

4 yrs

1 yrs

2 yrs

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Explanation:

Sum of ages of 5 members 3 years ago = 17 × 5 = 85
Present sum of ages of 5 members = 85 + 5 × 3 = 100
Present sum of ages of all members of Mohan’s family = 17 × 6 = 102
∴ Baby’s age = 102 – 100 = 2 years.