2

Set 3: Percentages

Explanation

Answer: A

A town's population was 810. It increased by 50%. What is the new population?

A.

1215

✓ Correct
B.

1225

C.

1205

D.

607

Detailed Explanation

Choice A is correct. 1. Original: 810 Increase: 50% × 810 = 405 New value: 810 + 405 = 1215 Therefore, the new population is 1215.

Key Steps:

The correct answer is 1215

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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