3
Answer: DSet 4: Percentages
Explanation
A jacket originally costs $240. It is on sale for 40% off. What is the sale price?
A.
134
B.
72
C.
154
D.✓ Correct
144
Detailed Explanation
Choice D is correct. 1. Original price: 240 = 240 - 144 Therefore, the sale price is $144.
Key Steps:
•
Apply the appropriate mathematical formula
•
The correct answer is 144
Why others are wrong:
A: This would give an incorrect result. Choice A is incorrect and may result from a calculation error.
B: This would give an incorrect result. Choice B is incorrect and may result from a calculation error.
C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.
🎯 Keep Practicing!
Master all sections for your best SAT score