9

Set 3: Percentages

Explanation

Answer: B

A town's population was 560. It increased by 100%. What is the new population?

A.

1130

B.

1120

✓ Correct
C.

1110

D.

560

Detailed Explanation

Choice B is correct. 1. Original: 560 Increase: 100% × 560 = 560 New value: 560 + 560 = 1120 Therefore, the new population is 1120.

Key Steps:

The correct answer is 1120

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.

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