By how many years is Rakesh younger than his brother sunil?
I. Ratio between Rakesh's present age and Sunil's age after four years is `5:7` respectively.
II. Ratio between Rakesh's age four years ago and Sunil's present age is `2:3` respectively.

Options

A. if the data in Statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer to question.
B. if the data in statement Ii alone are sufficient to answer the questin, while the data in statemetn I alone are not suffcient to answer the question.
C. if data either in statement I alone or in statement II alone are sufficient to answer the question.
D. if the data in both the statements I and II together are necessary to answer the question.

Explanation

To determine how many years Rakesh is younger than his brother Sunil, we will analyze the two statements provided and solve the equations step by step.

### Step 1: Define Variables
Let R be Rakesh's present age and S be Sunil's present age.

### Step 2: Analyze Statement I
From Statement I, we know:
- The ratio between Rakesh's present age (R) and Sunil's age after four years (S + 4) is 5:7.
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