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What is Ravi's present age?
I. The present age of ravi is half of that of his father
II. After 5 years the ratio of Ravi's age to that of his father's age will be 6 : 11
III. Ravi is 5 years younger than his brother.

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II and III only

All I, II and III

I and III only

I and II only

answer is D.

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Detailed Solution

I. Let ravi is present age = x years,
Father's present age = 2 x years
II. After 5 years

III. Ravi is younger than his brother
From I, II and III we get

\Rightarrow

x = 25
Therefore, only option I and II is sufficient to find their age .

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