Multiple choice question I — task. Mathematics State Board, Class 9.

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1. If \(n\) is a natural number then \(\sqrt{n}\) is:

always a natural number
always a rational number
may be rational or irrational
always an irrational number

2. Which of the following is not true?

Every real number is an irrational number
Every rational number is a real number
Every integer is a rational number
Every natural number is a whole number

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