Question
Sachin is younger than Rahul by 7 years. If their ages are in the respective ratio of 7 : 9, how old is Sachin?
Answer: Option D
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Let Rahul's age be x years.
Then, Sachin's age = (x - 7) years.
So, \(\frac{x-7}{x} = \frac{7}{9}\)
9x - 63 = 7x
2x = 63
x = 31.5
Hence, Sachin's age =(x - 7) = 24.5 years.
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