Subject: General Aptitude · Chapter: Problems on Ages · Exam: · Marks: · Difficulty:
Sonal is 40 years old and Nitya is 60 years old. How
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
Let x years ago the ratio of their ages be 3 : 5. 40 − x 3 Then, = ⇒ 3(60 – x) = 5(40 – x) 60 − x 5 ⇒ 180 – 3x = 200 – 5x ⇒ 2x = 20 ⇒ x = 10. ∴ 10 years ago, their ages were in the ratio 3 : 5.
Explanation as extracted from the printed page; notation may be imperfect.