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AFCAT I 2017 Solved Paper
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© examsnet.com
Question : 53
Total: 100
3 years back the average age of a family of 4 members was24 years. A baby having been born, the average age of thefamily is still same. What is the present age of the baby?
14 years
16 years
12 years
10 years
Validate
Solution:
👈: Video Solution
Let total age of family be G years.
3 years back, total age = G – 3 × 4 = G – 12
According to question
G
−
12
4
=
24
∴ G = 24 × 4 + 12 = 108 years
Let present age of baby = x
G
+
x
5
=
24
108
+
x
5
=
24
⇒ 108 + x =120
∴ x = 120 - 108 = 12 years
© examsnet.com
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