Two successive discounts of 50 percent and 40 percent are equivalent to a single discount of ______.
Show answer & explanation
Correct answer: D
Explanation
The Correct answer is option 4 i.e. 70 percent.
Successive percentage of x and y = x + y - xy/100
successive discounts of 50% and 40% = 50 + 40 - 50 × 40/100
= 90 - 20
= 70%