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Question
Six years from now, Kirti's age will be twice the age of her brother Kuna!, but 4 years ago she was four times as old as Kuna! was then. Find the present age of Kunal.
Options
9 years
15 years
30 years
24 years
MCQ
Solution
9 years
Explanation:
Present age of Kunal is x and kirti age 'y'.
After six-year,
(x + 6) × 2 = y + 6 .......(i)
Before '4' years,
(x – 4) x 4 = y – 4 ......(ii)
From (i) and (ii)
2x + 12 – 6 = 4x – 12
2x = 18
⇒ x = 9 years
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Problems Based on Ages (Entrance Exam)
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