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Rational number?

Number Theory Level 1

Which of the following is a rational number?

A. $\sqrt{2}$

B. $\sqrt{7}$

C. $\sqrt{\pi}$

D. $\sqrt{\frac{5}{25}}$

E. $\sqrt{\frac{64}{49}}$

B D A E C

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by Syed Hamza Khalid

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