Consider the following question and decide which statement is sufficient to answer the question.

**Question:**

Find the value of x.

**Statement:**

1. x : x^{2 }:: x^{2 }: 1331

2. x^{2} + 2xn + n^{2} = 21

- Either 1 or 2 is sufficient.
- Only 1 is sufficient.
- Neither 1 nor 2 is sufficient.
- Only 2 is sufficient.

Option 2 : Only 1 is sufficient.

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__Given:__

x : x2 :: x2 : 1331

p^{2 }+ 2pn + n^{2} = 21

__Calculation:__

From statement 1

x/x^{2} = x^{2}/1331

⇒ 1/x = x^{2}/1331

⇒ x^{3} = 1331

⇒ x = 11

From statement 1, we can find the value of x

From statement 2

We can't find the value of x because we can't get the value of two variables from one equation

**∴ Only 1 is sufficient**

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