MCQ
The value of $15\sqrt{15}\div3\sqrt{5}$ is:
- A$3$
- B$5$
- ✓$5\sqrt{3}$
- D$3\sqrt{5}$
✓
Answer
Correct option: C.
$5\sqrt{3}$
$\frac{15\sqrt{15}}{3\sqrt{5}}$
$=\frac{(3\times5)\sqrt{3}\times\sqrt{5}}{3\sqrt{3}}$
$=5\sqrt{3}$
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