Set 4: Percentages

Explanation

Answer: B

A phone originally costs $200. It is on sale for 50% off. What is the sale price?

100

✓ Correct

110

Detailed Explanation

Choice B is correct. 1. Original price: $200 Discount: 50% ×$ 200 = $100 Sale price:$ 200 - $100 =$ 100 Therefore, the sale price is $100.

Key Steps:

•

Apply the appropriate mathematical formula

•

The correct answer is 100

Why others are wrong:

A: This would give an incorrect result. Choice A 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.

Master all sections for your best SAT score