MCQ
Which of the following is a rational number.
- A$0.1010010001$
- B$\sqrt{23}$
- C$\sqrt{2}$
- D$\sqrt{225}$
✓
Answer
- $\sqrt{225}$
Solution:
Because $\sqrt{225}$ is a square of 15, i.e., $\sqrt{225}=15,$ and it can be expressed in the pq from, it is a rational number.
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