The price of a certain DVD is discounted by 10% and the reduced price is then discounted by 10%. This series of successive discounts is equivalent to a single discount of
A
20%
B
19%
C
18%
D
11%
Correct Answer: 19%
As we know that , Equivalent single discount = D1 + D2 − D1 × D2 % 100 Single equivalent discount = 10 + 10 − 10 × 10 % = 19% 100