SSC GD 2023 PYQ — Question 48

The Correct answer is option 1 i.e. $\frac{100}{9}$%

Given that

The cost price of 20 balls is the same as the selling price of 18 balls.

Calculation

C.P. × 20 = S.P. × 18

C.P./S.P. = 18/20 = 9/10

Profit % = [(S.P. - C.P.)/C.P.] × 100

= [(10 - 9)/9] × 100 = $\frac{100}{9}$%