To find the average of \(\sqrt{0.49}, \frac{3}{4},\) and 0.8:
Calculate \(\sqrt{0.49}:\)
\(\sqrt{0.49} = \sqrt{\frac{49}{100}} = \frac{7}{10} = 0.7\)
Convert \(\frac{3}{4}\) to decimal:
\(\frac{3}{4} = 0.75\)
Now, calculate the average:
\(\text{Average} = \frac{0.7 + 0.75 + 0.8}{3} = \frac{2.25}{3} = 0.75\)
Column B represents \(75\%\), which is also 0.75.
Conclusion:
Both quantities are equal.
So the correct answer is Option C.