8
Answer: DSet 5: Percentages
Explanation
A town's population was 380. It increased by 10%. What is the new population?
A.
209
B.
428
C.
408
D.✓ Correct
418
Detailed Explanation
Choice D is correct. 1. Original: 380 Increase: 10% × 380 = 38 New value: 380 + 38 = 418 Therefore, the new population is 418.
Key Steps:
•
The correct answer is 418
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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