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Jharkhand PSC Prelim Exam 2006 Solved Paper
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© examsnet.com
Question : 79
Total: 100
A father’s age was three times the age of his son. Five years ago father age was four times the age of his son. The age of son is-
12 years
15 years
18 years
20 years
Validate
Solution:
Let, age of Son = x
According to question,
Age of Father = 3x
After 5 years, Father age is 4times Son age = than Son age= x – 5
Then,Father age = 3x – 5
According to question,
(x – 5) × 4 = 3x – 5⇒ 15∴ Present age of Son= 15 years
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