Mastering Percentage for Competitive Exam Success

Percentage

Q. A man spends 40% of his salary on rent and 25% on food. What percentage of his salary is left?

A. 35%
B. 30%
C. 25%
D. 20%

Solution

Total spent = 40% + 25% = 65%. Salary left = 100% - 65% = 35%.

Correct Answer: B — 30%

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Q. A person invests $1,000 at an interest rate of 5% per annum. How much interest will he earn in one year?

A. $40
B. $50
C. $60
D. $70

Solution

Interest = 5% of 1,000 = 50.

Correct Answer: B — $50

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Q. A person received a 15% raise in his salary. If his new salary is $1,150, what was his old salary?

A. $1,000
B. $1,050
C. $1,100
D. $1,200

Solution

Let the old salary be x. Then, x + 0.15x = 1150. Therefore, 1.15x = 1150, x = 1150 / 1.15 = 1000.

Correct Answer: A — $1,000

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Q. A person spends 30% of his salary on rent and 20% on groceries. If his salary is $1,000, how much does he spend on rent?

A. $200
B. $250
C. $300
D. $350

Solution

Rent = 30% of 1000 = 0.3 * 1000 = 300.

Correct Answer: C — $300

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Q. A person spends 40% of his income on rent and 30% on food. If his income is $2000, how much does he spend on rent?

A. $600
B. $700
C. $800
D. $900

Solution

Rent = 40% of 2000 = 0.4 * 2000 = 800.

Correct Answer: A — $600

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Q. A population of a town increased from 10,000 to 12,000. What is the percentage increase?

A. 20%
B. 15%
C. 25%
D. 10%

Solution

Percentage increase = ((12,000 - 10,000) / 10,000) * 100 = 20%.

Correct Answer: A — 20%

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Q. A population of a town increased from 10,000 to 12,500. What is the percentage increase?

A. 20%
B. 25%
C. 30%
D. 15%

Solution

Percentage increase = ((12,500 - 10,000) / 10,000) * 100 = 25%.

Correct Answer: B — 25%

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Q. A population of a town increased from 20,000 to 25,000 in a year. What is the percentage increase in population?

A. 20%
B. 25%
C. 30%
D. 15%

Solution

Percentage increase = ((25000 - 20000) / 20000) * 100 = 25%.

Correct Answer: B — 25%

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Q. A population of a town increased from 20,000 to 25,000 in a year. What is the percentage increase in the population?

A. 20%
B. 25%
C. 30%
D. 35%

Solution

Percentage increase = ((25000 - 20000) / 20000) * 100 = (5000 / 20000) * 100 = 25%.

Correct Answer: B — 25%

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Q. A population of a town increased from 20,000 to 25,000 in a year. What is the percentage increase?

A. 20%
B. 25%
C. 30%
D. 35%

Solution

Percentage increase = ((25000 - 20000) / 20000) * 100 = 25%.

Correct Answer: B — 25%

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Q. A population of a town increased from 20,000 to 25,000. What is the percentage increase?

A. 20%
B. 25%
C. 30%
D. 35%

Solution

Percentage increase = ((25000 - 20000) / 20000) * 100 = 25%

Correct Answer: B — 25%

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Q. A product is marked at $120 and is sold at a 25% discount. What is the selling price of the product?

A. $80
B. $85
C. $90
D. $95

Solution

Discount = 25% of 120 = 30. Selling price = 120 - 30 = $90.

Correct Answer: C — $90

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Q. A product is marked at $120 and is sold at a discount of 25%. What is the selling price of the product?

A. $80
B. $85
C. $90
D. $95

Solution

Discount = 25% of 120 = 0.25 * 120 = 30; Selling price = Marked price - Discount = 120 - 30 = 90.

Correct Answer: A — $80

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Q. A product is marked at $200 and is sold at a 15% discount. What is the selling price?

A. $170
B. $180
C. $190
D. $200

Solution

Selling price = 200 - (15/100 * 200) = 200 - 30 = $170.

Correct Answer: A — $170

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Q. A product is marked at $500 and is sold at a 10% discount. What is the selling price?

A. $450
B. $475
C. $500
D. $550

Solution

Discount = 10% of 500 = 50. Selling price = 500 - 50 = 450.

Correct Answer: B — $475

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Q. A product is marked at $500 and is sold at a 15% discount. What is the selling price?

A. $425
B. $450
C. $475
D. $500

Solution

Discount = 15% of 500 = 0.15 * 500 = 75. Selling price = 500 - 75 = 425.

Correct Answer: A — $425

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Q. A product's price increased from $150 to $180. What is the percentage increase in price?

A. 15%
B. 20%
C. 25%
D. 30%

Solution

Percentage increase = ((180 - 150) / 150) * 100 = (30 / 150) * 100 = 20%.

Correct Answer: B — 20%

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Q. A product's price increased from $200 to $250. What is the percentage increase in price?

A. 20%
B. 25%
C. 30%
D. 35%

Solution

Percentage increase = ((250 - 200) / 200) * 100 = (50 / 200) * 100 = 25%.

Correct Answer: B — 25%

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Q. A product's price increased from $200 to $250. What is the percentage increase in the price?

A. 20%
B. 25%
C. 30%
D. 35%

Solution

Percentage increase = ((250 - 200)/200)*100 = (50/200)*100 = 25%.

Correct Answer: B — 25%

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Q. A product's price increased from $50 to $65. What is the percentage increase in the price?

A. 25%
B. 30%
C. 35%
D. 40%

Solution

Increase = 65 - 50 = 15; Percentage increase = (15/50) * 100 = 30%.

Correct Answer: B — 30%

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Q. A product's price increased from $80 to $100. What is the percentage increase?

A. 20%
B. 25%
C. 30%
D. 35%

Solution

Percentage increase = ((100 - 80) / 80) * 100 = (20 / 80) * 100 = 25%.

Correct Answer: B — 25%

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Q. A shirt is sold for $240 after a discount of 20%. What was the original price of the shirt?

A. $200
B. $220
C. $240
D. $300

Solution

Let the original price be x. After a 20% discount, the selling price is x - 0.2x = 0.8x. Given 0.8x = 240, we find x = 240 / 0.8 = 300.

Correct Answer: A — $200

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Q. A shirt is sold for $30 after a discount of 25%. What was the original price of the shirt?

A. $35
B. $40
C. $45
D. $50

Solution

Let the original price be x. Then, 0.75x = 30. Therefore, x = 30 / 0.75 = 40.

Correct Answer: B — $40

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Q. A store increases the price of a product by 12% and then offers a discount of 12% on the new price. What is the net effect on the price?

A. 0%
B. 1.44% increase
C. 1.44% decrease
D. 2.4% increase

Solution

Let the original price be 100. New price after increase = 100 + 12 = 112. Discount = 12% of 112 = 13.44. Final price = 112 - 13.44 = 98.56. Net effect = (98.56 - 100) / 100 * 100 = -1.44%.

Correct Answer: B — 1.44% increase

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Q. A store increases the price of a product by 20% and then offers a 10% discount on the new price. If the original price is $50, what is the final price after the discount?

A. $54
B. $55
C. $56
D. $57

Solution

New price after 20% increase = 50 + 10 = 60. Discount = 10% of 60 = 6. Final price = 60 - 6 = $54.

Correct Answer: A — $54

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Q. A store increases the price of a product by 20% and then offers a 10% discount. If the original price was $50, what is the final price?

A. $48
B. $50
C. $52
D. $54

Solution

New price after increase = 50 + (20% of 50) = 50 + 10 = 60. Discount = 10% of 60 = 6. Final price = 60 - 6 = 54.

Correct Answer: A — $48

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Q. A store increases the price of a product by 25% and then offers a discount of 10%. If the original price was $200, what is the final price?

A. $210
B. $220
C. $230
D. $240

Solution

New price after increase = 200 + 25% of 200 = 200 + 50 = 250. Discount = 10% of 250 = 25. Final price = 250 - 25 = 225.

Correct Answer: A — $210

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Q. A store increases the price of an item by 25% and then offers a 20% discount. What is the net percentage change in price?

A. 5% increase
B. 10% decrease
C. 10% increase
D. 5% decrease

Solution

Let the original price be $100. New price = 125. After discount = 125 - (20/100 * 125) = 100. Net change = 0%.

Correct Answer: A — 5% increase

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Q. A store increases the price of an item by 25% and then offers a 20% discount. What is the net percentage increase in price?

A. 5%
B. 10%
C. 15%
D. 20%

Solution

New price = 1.25x, after discount = 1.25x * 0.8 = x * 1.0. Net increase = 0%.

Correct Answer: B — 10%

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Q. A store offers a 10% discount on a $50 item. What is the final price after the discount?

A. $40
B. $45
C. $50
D. $55

Solution

Discount = 10% of 50 = 5. Final price = 50 - 5 = 45.

Correct Answer: A — $40

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