A dishonest shopkeeper uses 900 g weight instead of 1 kg. His profit %: MCQ with Answer and Explanation
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Question #1
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A dishonest dealer sells goods at 10% profit but uses a weight of 800 g for 1 kg. Find his overall profit percent.
Correct Answer: Option C
Explanation:
CP per g = 1, SP per g = 1.1. For 800 g, CP=800, SP=1000×1.1? Actually, he sells 800 g as 1 kg, so SP for 800 g = price of 1 kg at 10% profit = 1.1 times CP of 1 kg. Let CP of 1 kg = 1000, SP=1100. But he gives only 800 g, so CP=800, SP=1100. Profit = 300, % = (300/800)×100 = 37.5%.
CP per g = 1, SP per g = 1.1. For 800 g, CP=800, SP=1000×1.1? Actually, he sells 800 g as 1 kg, so SP for 800 g = price of 1 kg at 10% profit = 1.1 times CP of 1 kg. Let CP of 1 kg = 1000, SP=1100. But he gives only 800 g, so CP=800, SP=1100. Profit = 300, % = (300/800)×100 = 37.5%.
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Maths
Percentage
Question #2
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A student scored 300 marks out of a total of 400. What is their percentage?
Correct Answer: Option D
Explanation:
Percentage = (300 / 400) * 100% = 75%.
Percentage = (300 / 400) * 100% = 75%.
This question belongs to:
Maths
Percentage
Question #3
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If the length of a rectangle is increased by 30% and the breadth is decreased by 25%, what is the percentage change in area?
Correct Answer: Option C
Explanation:
1.3 × 0.75 = 0.975, decrease 2.5%.
1.3 × 0.75 = 0.975, decrease 2.5%.
This question belongs to:
Maths
Percentage
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