Kajal offers two successive discounts of 10% and 8% on the sale of a cosmetic item to her customer. What is the equivalent single percentage discount offered by Kajal?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 17.2%.
Single discount = - x - y + xy/100
⇒ -10 - 8 + 80/100
⇒ -18 + 08 = -17.2% [negative sign shows discount]