Question
The age of Arjun 4 years ago was 25% more than the present
age of Rohan. 6 years hence, the ratio of their ages will be 15:11. Find the difference between their present ages.Solution
Let the present age of Rohan be ‘x’ years
Therefore, present age of Arjun = (1 + 0.25)x + 4 = 1.25x + 4
According to the question,
(1.25x + 4 + 6) / (x + 6) = 30/22
Solving the equation, we get x = 16 years
Then, Arjun's age = 24 years
Required difference = 24 – 16 = 8 years
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5 4 29 24 185 ?
112    162    199    ?     242    252
...32Â Â Â 96Â Â Â Â 240Â Â Â Â 480Â Â Â Â Â 720Â Â Â ?
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16 18 14 20 12 ?
...13, 14, 18, 27, 43, ?
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