Set 1: Percentages

Explanation

Answer: D

A tablet originally costs $150. It is on sale for 20% off. What is the sale price?

130

110

120

✓ Correct

Detailed Explanation

Choice D is correct. 1. Original price: $150 Discount: 20% ×$ 150 = $30 Sale price:$ 150 - $30 =$ 120 Therefore, the sale price is $120.

Key Steps:

•

Apply the appropriate mathematical formula

•

The correct answer is 120

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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