Two successive discounts of 20% and 20% are equivalent to a single discount of


A) 42%

B) 40%

C) 36%

D) 34%

Correct Answer:
C) 36%

Description for Correct answer:

Given, \( \Large r_{1} \) = 20% and \( \Large r_{2} \) = 20%

Therefore, Single discount equal to \( \Large r_{1} \) and \( \Large r_{2} \)

= \( \Large \left(r_{1}+r_{2}-\frac{r_{1} \times r_{2}}{100}\right) \)%

= \( \Large 20+20-\frac{20 \times 20}{100} \) = 40 - 4 = 36%


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