Set 1: Percentages

Explanation

Answer: D

A headphones originally costs $170. It is on sale for 40% off. What is the sale price?

112

102

✓ Correct

Detailed Explanation

Choice D is correct. 1. Original price: $170 Discount: 40% ×$ 170 = $68 Sale price:$ 170 - $68 =$ 102 Therefore, the sale price is $102.

Key Steps:

•

Apply the appropriate mathematical formula

•

The correct answer is 102

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.

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