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Ravi's age is 6 times of Arun. After 18 years, Ravi's age will be three times the age of Arun. Ravi's
present age is

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answer is B.

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Detailed Solution

Ravi = 6 × Arun

R + 18 = 3(A + 18)

$\Rightarrow$ R + 18 = 3A + 54

$\Rightarrow$ 6A - 3A = 36 $\Rightarrow$ $A = 12$

ravi's present age=6*12=72

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