Question

The 2 age of a couple is 24 years when they were married five years ago but now the 2 age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child ?
A) 2 yrs
B) 4 yrs
C) 3 yrs
D) 5 yrs

Answer 1

Now, Sum of the ages of the 4 members = 4 ×24 + 4 × 10 = 136 years

Let ‘x + 2” and ‘x’ be the ages of the new born elder and younger children respectively.

Then the present average, (136 + x +2 +  x)/6 = 24

 2x = 24 × 6 – 138 = 144 – 138 = 6

Therefore, x = 3 years

Answer 2

The 2 age of a couple is 24 years when they were married five years ago but now the 2 age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child ?
A) 2 yrs
B) 4 yrs
C) 3 yrs
D) 5 yrs

Answer: A) 2 yrs