5

Set 4: Percentages

Explanation

Answer: D

A town's population was 630. It increased by 20%. What is the new population?

A.

746

B.

378

C.

766

D.

756

✓ Correct

Detailed Explanation

Choice D is correct. 1. Original: 630 Increase: 20% × 630 = 126 New value: 630 + 126 = 756 Therefore, the new population is 756.

Key Steps:

The correct answer is 756

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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