Question

# Which of the following numbers is different from others?

A
2
B
3
C
4
D
5

Solution

## The correct option is D $$\displaystyle \sqrt{4}$$Out of $$\sqrt{2}$$,$$\sqrt{3}$$,$$\sqrt{4}$$,$$\sqrt{5}$$Only $$\sqrt{4}=2$$ is rational number which can be written in the form of $$\dfrac{p}{q}$$ where $$p=2$$ and $$q=1$$ while others are irrational number.Mathematics

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