Radha's present age is three years less than twice her age 12 years ago. Also the respective ratio between Raj's present age and Radha's present age is 4 : 9. What will be Raj's age after 5 years?
Radha's present age is three years less than twice her age 12 years ago. Also the respective ratio between Raj's present age and Radha's present age is 4 : 9. What will be Raj's age after 5 years?
A12 years
B7 years
C21 years
DNone of these
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Correct answer is: None of these
Explanation:
Let Radha's present age = x years.
Therefore, \(x = 2 \left(x-12\right)-3\)
\(\implies x = 2x - 24 - 3 \implies x = 27\)
Therefore, Raj's present age = \(\Large \frac{4}{9} \times 27\) = 12 years
Therefore, Raj's age after 5 years = 12 + 5 = 17 years
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