Set 4: Percentages

Explanation

Answer: D

A town's population was 280. It increased by 10%. What is the new population?

318

298

154

308

✓ Correct

Detailed Explanation

Choice D is correct. 1. Original: 280 Increase: 10% × 280 = 28 New value: 280 + 28 = 308 Therefore, the new population is 308.

Key Steps:

•

The correct answer is 308

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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