This question was previously asked in

MP Police Constable Previous Paper 21 (Held On: 31 Aug 2017 Shift 1)

- 11
- 12
- 9
- 8

Option 1 : 11

**Given:**

Age of Rahul = Age of his sister + 4

Sum of their age = √324 = 18

**Calculation:**

Let the age of Rahul be x years.

The age of sister = (x - 4) years

According to the question,

x + x - 4 = 18

⇒ 2x = 22

⇒ x = 11

**∴ The age of Rahul is 11 years.**

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