SSC Selection Post 2020 PYQ — Question 70

The correct answer is option 3 i.e. 154.

πd − d = 30

d (π − 1) = 30

d = $\frac{30}{\frac{22}{7} - 1} = \frac{30}{\frac{15}{7}} = 14$

r = d/2 = 14/2 = 7

Area = πr²

^{= $\frac{22}{7} \times 7^2 = 154$}