3 years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is :

Options

A. 2 years / वर्ष
B. 2.4 years / वर्ष
C. 3 years/ वर्ष
D. 1.5 years/ वर्ष

Answer

A

Explanation

3 वर्ष पूर्व परिवार की आयु का योग `= 5 xx 17`
`= `85 वर्ष
वर्तमान आयु `= 85 + (5 xx 3) = 100` वर्ष
शिशु सहित परिवार की कुल आयु` = 6 xx 17 = 102 `वर्ष
` therefore `शिशु की आयु = 102 - 100 = 2 वर्ष