Percentage MCQs
Practice Percentage MCQs with answers and detailed explanations. Learn percentage calculations, increase and decrease percentages, profit and loss percentages, discounts, percentage change and exam-oriented quantitative aptitude questions designed for SSC, Railway, Banking, UPSC, JKSSB, Police, Teaching and other competitive exams.
Question #41
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If the price of rice decreases by 20%, by what percentage can consumption be increased without changing expenditure?
Correct Answer: Option C
Explanation:
Required increase = (R / (100 - R)) * 100. (20 / 80) * 100 = 25%.
Required increase = (R / (100 - R)) * 100. (20 / 80) * 100 = 25%.
This question belongs to:
Maths
Percentage
Question #42
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If the price of oil decreases by 25%, by what percentage can consumption be increased to maintain the same expenditure?
Correct Answer: Option A
Explanation:
Required increase = (25 / 75) * 100 = 100 / 3 = 33.33%.
Required increase = (25 / 75) * 100 = 100 / 3 = 33.33%.
This question belongs to:
Maths
Percentage
Question #43
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If the price of petrol increases by 10%, by what percentage should a person decrease their usage to keep the budget unchanged?
Correct Answer: Option B
Explanation:
Required decrease = (10 / 110) * 100 = 100 / 11 = 9.09%.
Required decrease = (10 / 110) * 100 = 100 / 11 = 9.09%.
This question belongs to:
Maths
Percentage
Question #44
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If the price of a commodity decreases by 10%, by what percentage can the consumption increase so that the expenditure remains the same?
Correct Answer: Option D
Explanation:
Required increase = (10 / 90) * 100 = 100 / 9 = 11.11%.
Required increase = (10 / 90) * 100 = 100 / 9 = 11.11%.
This question belongs to:
Maths
Percentage
Question #45
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If the length of a rectangle is increased by 20%, by what percentage must the width be decreased to maintain the same area?
Correct Answer: Option D
Explanation:
Required decrease = (20 / 120) * 100 = 16.67%.
Required decrease = (20 / 120) * 100 = 16.67%.
This question belongs to:
Maths
Percentage
Question #46
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If the length of a rectangle is increased by 25%, by what percentage must the width be decreased to keep the area unchanged?
Correct Answer: Option C
Explanation:
Required decrease = (25 / 125) * 100 = 20%.
Required decrease = (25 / 125) * 100 = 20%.
This question belongs to:
Maths
Percentage
Question #47
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If speed increases by 25%, by what percentage will the time required to cover the same distance decrease?
Correct Answer: Option A
Explanation:
Time and speed are inversely proportional. Time reduction = (25 / 125) * 100 = 20%.
Time and speed are inversely proportional. Time reduction = (25 / 125) * 100 = 20%.
This question belongs to:
Maths
Percentage
Question #48
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If speed decreases by 20%, by what percentage will the time required to cover the same distance increase?
Correct Answer: Option A
Explanation:
Time increase = (20 / 80) * 100 = 25%.
Time increase = (20 / 80) * 100 = 25%.
This question belongs to:
Maths
Percentage
Question #49
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In an election between two candidates, the winner got 60% of the votes and won by a majority of 400 votes. What was the total number of votes cast?
Correct Answer: Option B
Explanation:
Winner = 60%, Loser = 40%. Difference = 20%. 20% of Total = 400. Total = 400 * (100 / 20) = 2000.
Winner = 60%, Loser = 40%. Difference = 20%. 20% of Total = 400. Total = 400 * (100 / 20) = 2000.
This question belongs to:
Maths
Percentage
Question #50
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In an election, a candidate got 55% of the total votes and won by 500 votes. Find the total number of votes cast.
Correct Answer: Option B
Explanation:
Winner = 55%, Loser = 45%. Difference = 10%. 10% of Total = 500. Total = 5000.
Winner = 55%, Loser = 45%. Difference = 10%. 10% of Total = 500. Total = 5000.
This question belongs to:
Maths
Percentage
