7

Set 1: Percentages

Explanation

Answer: D

A town's population was 850. It increased by 20%. What is the new population?

A.

510

B.

1010

C.

1030

D.

1020

✓ Correct

Detailed Explanation

Choice D is correct. 1. Original: 850 Increase: 20% × 850 = 170 New value: 850 + 170 = 1020 Therefore, the new population is 1020.

Key Steps:

The correct answer is 1020

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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