সব প্রশ্নে ফিরে যান
Math
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
A) 1 year
B) 1 year 6 months
C) 2 years
সঠিক উত্তর
D) 3 years