MCQ
Which among the following is a rational number?
- A$\sqrt { 2 }$
- B$ \sqrt { \pi }$
- C$ \sqrt { \frac { 5 }{ 25 } }$
- ✓$\sqrt { \frac { 64 }{ 49 } }$
✓
Answer
Correct option: D.
$\sqrt { \frac { 64 }{ 49 } }$
$\sqrt{\frac{64}{49}} = {\frac{\sqrt{64}}{\sqrt{49}}} = \frac{8}{7}$ Option $D$ is a rational number. Rest all are irrational numbers.
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