A dealer gives 10%, 20%, and 30% successive discounts on an item. What is the single equivalent discount on the item?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 49.6%.
Given:
A dealer gives 10%, 20%, and 30% successive discounts on an item
According to the question;
Equivalent discount of 10% and 20% = 10 + 20 - 10 × 20/100
= 30 - 2 = 28 %
Equivalent discount of 28% and 30% = 28 + 30 - 28 × 30/100
= 49.6%