Percentage
Q. If 15% of a number is 45, what is the number?
-
A.
250
-
B.
300
-
C.
350
-
D.
400
Solution
Let the number be x. Then, 0.15x = 45. Therefore, x = 45/0.15 = 300.
Correct Answer: B — 300
Q. If 20% of a number is 50, what is the number?
-
A.
200
-
B.
250
-
C.
300
-
D.
400
Solution
Let the number be x. Then, 0.2x = 50. Therefore, x = 50 / 0.2 = 250.
Correct Answer: A — 200
Q. If 30% of a number is 150, what is the number?
-
A.
400
-
B.
450
-
C.
500
-
D.
600
Solution
Let the number be x. Then, 0.3x = 150. Therefore, x = 150 / 0.3 = 500.
Correct Answer: B — 450
Q. If 40% of a number is 80, what is the number?
-
A.
150
-
B.
200
-
C.
250
-
D.
300
Solution
Let the number be x. Then, 0.4x = 80. So, x = 80 / 0.4 = 200.
Correct Answer: B — 200
Q. If 45% of a number is 90, what is the number?
-
A.
150
-
B.
200
-
C.
250
-
D.
300
Solution
Let the number be x. 0.45x = 90, x = 90/0.45 = 200
Correct Answer: B — 200
Q. If 60% of a number is 120, what is the number?
-
A.
150
-
B.
180
-
C.
200
-
D.
250
Solution
Let the number be x. 0.6x = 120, x = 120/0.6 = 200
Correct Answer: C — 200
Q. If 60% of a number is 240, what is the number?
-
A.
360
-
B.
400
-
C.
420
-
D.
480
Solution
Let the number be x. Then, 0.6x = 240. Therefore, x = 240/0.6 = 400.
Correct Answer: B — 400
Q. If a car's value depreciates by 15% each year and its current value is $20,000, what will be its value after one year?
-
A.
$15,000
-
B.
$16,500
-
C.
$17,000
-
D.
$18,000
Solution
Value after one year = 20,000 - (15/100)*20,000 = 20,000 - 3,000 = $17,000.
Correct Answer: B — $16,500
Q. If a jacket is marked at $120 and is sold at a 25% discount, what is the sale price?
-
A.
$80
-
B.
$85
-
C.
$90
-
D.
$95
Solution
Discount = 25% of 120 = 30. Sale price = 120 - 30 = 90.
Correct Answer: A — $80
Q. If a jacket is marked at $150 and is sold for $120, what is the discount percentage?
-
A.
15%
-
B.
20%
-
C.
25%
-
D.
30%
Solution
Discount = 150 - 120 = 30. Discount percentage = (30 / 150) * 100 = 20%.
Correct Answer: C — 25%
Q. If a man earns $1200 after a 20% raise, what was his original salary?
-
A.
$900
-
B.
$1000
-
C.
$1100
-
D.
$1200
Solution
Let the original salary be x. After a 20% raise, x + 0.2x = 1.2x = 1200. Thus, x = 1200 / 1.2 = 1000.
Correct Answer: B — $1000
Q. If a man earns $1200 after a 20% raise, what was his salary before the raise?
-
A.
$900
-
B.
$1000
-
C.
$1100
-
D.
$1200
Solution
Let the original salary be x. After a 20% raise, the salary is x + 0.2x = 1.2x. Given 1.2x = 1200, we find x = 1200 / 1.2 = 1000.
Correct Answer: B — $1000
Q. If a person earns $1200 after a 20% raise, what was his salary before the raise?
-
A.
$1000
-
B.
$1100
-
C.
$900
-
D.
$950
Solution
Let the original salary be x. After a 20% raise, the salary is x + 0.2x = 1.2x. Therefore, 1.2x = 1200, so x = 1200 / 1.2 = $1000.
Correct Answer: A — $1000
Q. If a person earns $5000 and spends 60% of it, how much does he save?
-
A.
$1500
-
B.
$2000
-
C.
$2500
-
D.
$3000
Solution
Spending = 60% of 5000 = 3000. Savings = 5000 - 3000 = $2000.
Correct Answer: B — $2000
Q. If a person saves 15% of his salary and his salary is $1200, how much does he save?
-
A.
$150
-
B.
$180
-
C.
$200
-
D.
$220
Solution
Savings = 0.15 * 1200 = $180.
Correct Answer: B — $180
Q. If a person saves 15% of his salary and his salary is $800, how much does he save?
-
A.
$100
-
B.
$120
-
C.
$150
-
D.
$180
Solution
Savings = 0.15 * 800 = $120.
Correct Answer: B — $120
Q. If a person saves 25% of his salary and his salary is $800, how much does he save?
-
A.
$150
-
B.
$200
-
C.
$250
-
D.
$300
Solution
Savings = 25% of 800 = 0.25 * 800 = 200.
Correct Answer: B — $200
Q. If a person saves 30% of his salary and his salary is $2000, how much does he save?
-
A.
$500
-
B.
$600
-
C.
$700
-
D.
$800
Solution
Savings = 30% of 2000 = 0.3 * 2000 = $600.
Correct Answer: B — $600
Q. If a person saves 30% of his salary and his savings amount to $600, what is his total salary?
-
A.
$1,800
-
B.
$2,000
-
C.
$2,200
-
D.
$2,400
Solution
Let the salary be x. 30% of x = 600; 0.3x = 600; x = 600 / 0.3 = 2000.
Correct Answer: B — $2,000
Q. If a population increases from 5000 to 6000, what is the percentage increase?
-
A.
20%
-
B.
25%
-
C.
30%
-
D.
15%
Solution
Increase = 6000 - 5000 = 1000. Percentage increase = (1000/5000) * 100 = 20%.
Correct Answer: A — 20%
Q. If a population of a town increases by 10% every year and the current population is 5,000, what will be the population after one year?
-
A.
5,200
-
B.
5,500
-
C.
5,600
-
D.
5,800
Solution
Increase = 10% of 5000 = 0.1 * 5000 = 500; Population after one year = 5000 + 500 = 5500.
Correct Answer: B — 5,500
Q. If a population of a town increases by 15% in one year, what will be the population after one year if the current population is 20,000?
-
A.
22,000
-
B.
23,000
-
C.
24,000
-
D.
25,000
Solution
Increase = 15% of 20,000 = 3,000. New population = 20,000 + 3,000 = 23,000.
Correct Answer: A — 22,000
Q. If a population of a town increases from 10,000 to 12,000 in a year, what is the percentage increase in population?
-
A.
15%
-
B.
20%
-
C.
25%
-
D.
30%
Solution
Increase = 12000 - 10000 = 2000; Percentage increase = (2000/10000) * 100 = 20%.
Correct Answer: B — 20%
Q. If a population of a town increases from 10,000 to 12,000 in a year, what is the percentage increase in the population?
-
A.
15%
-
B.
20%
-
C.
25%
-
D.
30%
Solution
Percentage increase = ((12000 - 10000) / 10000) * 100 = (2000 / 10000) * 100 = 20%.
Correct Answer: B — 20%
Q. If a population of a town increases 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 = (5000 / 20000) * 100 = 25%.
Correct Answer: B — 25%
Q. If a population of a town increases from 2000 to 2500 in a year, what is the percentage increase in population?
-
A.
20%
-
B.
25%
-
C.
30%
-
D.
35%
Solution
Percentage increase = ((2500 - 2000) / 2000) * 100 = (500 / 2000) * 100 = 25%.
Correct Answer: B — 25%
Q. If a product is marked at $150 and is sold at a 10% discount, what is the selling price?
-
A.
$135
-
B.
$140
-
C.
$145
-
D.
$150
Solution
Selling price = 150 - (10/100 * 150) = 150 - 15 = 135.
Correct Answer: A — $135
Q. If a product is marked at $150 and sold at a 10% discount, what is the selling price?
-
A.
$135
-
B.
$140
-
C.
$145
-
D.
$150
Solution
Selling price = 150 - (10/100 * 150) = 150 - 15 = 135.
Correct Answer: A — $135
Q. If a product is marked at $200 and is sold at a 10% discount, what is the selling price?
-
A.
$180
-
B.
$190
-
C.
$200
-
D.
$210
Solution
Selling price = 200 - (0.1 * 200) = 200 - 20 = 180
Correct Answer: A — $180
Q. If a product is marked at $200 and sold at a 10% discount, what is the selling price?
-
A.
$180
-
B.
$190
-
C.
$200
-
D.
$210
Solution
Selling price = 200 - (0.10 * 200) = 200 - 20 = $180.
Correct Answer: A — $180
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