MCQ
The mean proportional between $\frac{1}{3}$ and 243 is:
- A3
- ✓9
- C27
- D81
✓
Answer
Correct option: B.
9
(b) 9
Explanation:
The mean proportional between
$\frac{1}{3}$ and 243 is given by
$\begin{array}{l}x=\sqrt{\frac{1}{3} \times 243} \\ x=\sqrt{81} \\ x=9\end{array}$
Explanation:
The mean proportional between
$\frac{1}{3}$ and 243 is given by
$\begin{array}{l}x=\sqrt{\frac{1}{3} \times 243} \\ x=\sqrt{81} \\ x=9\end{array}$
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