A single discount equivalent to successive discounts of 10%, 20% and 40% on marked price is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e 56 %
The successive discounts given = 10%, 20%, and 40%
Firstly, we calculate a successive discount of 10% and 20% is equivalent to a single discount of = 10 + 20 - (10 × 20)/100
= 30 - 2 = 28%
Now, the successive discount of 32% and 40% is equivalent to a single discount of
= 28 + 40 - (28 × 40)/100 = 68 - 11.2 = 56.8%
Hence, the required single discount = 56 %