8
Answer: DSet 1: Percentages (Advanced)
Explanation
PROBLEM
An item costs $40 and is 50% off. What is the sale price?
An item costs $40 and is 50% off. What is the sale price?
A.
15
B.
40
C.
10
D.✓ Correct
20
Detailed Explanation
Choice D is the best answer. Discount = 50% of 40 = 20. Sale price = 40 - 20 = $20
Why others are wrong:
A: 15 is incorrect because it does not satisfy the equation.
B: 40 is incorrect because it does not satisfy the equation.
C: 10 is incorrect because it does not satisfy the equation.