Subject: General Aptitude · Chapter: Problems on Ages · Exam: · Marks: · Difficulty:
A man was asked to state his age in years. His reply was, "Take my age 3 years hence, multiply it by 3 and then subtract 3 times my age 3 years ago and you will know how old I am." What is the age of the man? (S.S.C., 2004)
(a)18 years
(b)20 years
(c)24 years
(d)32 years
Answer
Answer (as printed): A
Explanation
Let the present age of the man be $x$ years. Then $$3(x+3)-3(x-3)=x \Rightarrow (3x+9)-(3x-9)=x \Rightarrow x=18.$$ The present age of the man is 18 years.
Explanation as extracted from the printed page; notation may be imperfect.