Set 5: Percentages

Explanation

Answer: A

A laptop originally costs $180. It is on sale for 40% off. What is the sale price?

108

✓ Correct

118

Detailed Explanation

Choice A is correct. 1. Original price: $180 Discount: 40% ×$ 180 = $72 Sale price:$ 180 - $72 =$ 108 Therefore, the sale price is $108.

Key Steps:

•

Apply the appropriate mathematical formula

•

The correct answer is 108

Why others are wrong:

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.

D: This would give an incorrect result. Choice D is incorrect and may result from a calculation error.

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