Question

The cost of levelling a circular field at $Rs.2$ per sq. metre is $Rs.33957$. Calculate the radius of the circular field.

• A. $73.5m$
• B. $75.5m$
• C. $76.5m$
• D. $78.5m$

Answer 1

Answer: (A)

$73.5m$

Let the radius of the circle be r.
Area of the circle is $\pi r^2$
Thus,
$\pi r^2\times 2=33957$
$=>r^2=\frac{33957\times 7}{2\times 22}$
$=>r^2=5402.25$
$=>r=73.5$ m