Q.1 If a number is increased by 20%, it becomes 120. What is the original number?
90
100
110
80
Explanation - Let the original number be x. After 20% increase, it becomes x + 20% of x = 1.2x = 120. So, x = 120 / 1.2 = 100.
Correct answer is: 100
Q.2 What is 25% of 480?
110
120
100
90
Explanation - 25% = 25/100 = 1/4. So, 1/4 × 480 = 120.
Correct answer is: 120
Q.3 A student scored 420 marks out of 600. What is the percentage score?
65%
68%
70%
72%
Explanation - Percentage = (420/600) × 100 = 70%.
Correct answer is: 70%
Q.4 If the price of an article increases from 500 to 600, what is the percentage increase?
15%
18%
20%
25%
Explanation - Increase = 600 - 500 = 100. Percentage increase = (100/500) × 100 = 20%.
Correct answer is: 20%
Q.5 A shopkeeper gives a discount of 10% on an article marked at 1500. What is the selling price?
1350
1400
1450
1300
Explanation - Discount = 10% of 1500 = 150. Selling price = 1500 - 150 = 1350.
Correct answer is: 1350
Q.6 What percent of 200 is 50?
10%
20%
25%
30%
Explanation - Required percentage = (50/200) × 100 = 25%.
Correct answer is: 25%
Q.7 If A’s salary is 25% more than B’s and B earns 20,000, what is A’s salary?
24,000
25,000
26,000
28,000
Explanation - A’s salary = B’s salary + 25% of B’s salary = 20,000 + 5,000 = 25,000.
Correct answer is: 25,000
Q.8 A number is decreased by 20% and then increased by 25%. What is the net effect?
5% increase
5% decrease
No change
10% increase
Explanation - Let number = 100. After 20% decrease = 80. Then increase 25% of 80 = 100. Hence no change.
Correct answer is: No change
Q.9 In an election, a candidate got 40% of votes and lost by 1200 votes. Total votes were?
6000
7200
8000
9000
Explanation - Winner got 60%. Difference = 20% = 1200. So, total votes = 1200/0.2 = 6000.
Correct answer is: 6000
Q.10 If a man spends 85% of his income and saves 2250, what is his income?
15000
12000
16000
18000
Explanation - Savings = 15% of income = 2250. So, income = 2250 × 100 / 15 = 15000.
Correct answer is: 15000
Q.11 What is 0.75 expressed as a percentage?
70%
75%
80%
85%
Explanation - 0.75 × 100 = 75%.
Correct answer is: 75%
Q.12 If the population of a town increases by 10% annually, what will be the population after 2 years if the current population is 5000?
6050
6055
6000
6051
Explanation - Population after 2 years = 5000 × (1.1)² = 5000 × 1.21 = 6050.
Correct answer is: 6050
Q.13 What is 12.5% of 640?
70
75
80
85
Explanation - 12.5% = 1/8. So, 1/8 × 640 = 80.
Correct answer is: 80
Q.14 If the price of sugar decreases by 20%, how much sugar can be bought with the money that earlier bought 40 kg?
45 kg
48 kg
50 kg
55 kg
Explanation - For same money, new quantity = 40 × 100 / 80 = 50 kg.
Correct answer is: 50 kg
Q.15 If 40% of a number is 160, what is the number?
300
350
400
450
Explanation - Let number = x. 40% of x = 160 → 0.4x = 160 → x = 400.
Correct answer is: 400
Q.16 If A scored 20% more than B, and B scored 50 marks, how many marks did A score?
55
60
65
70
Explanation - A = 50 + 20% of 50 = 50 + 10 = 60.
Correct answer is: 60
Q.17 If the cost price of an item is 500 and it is sold at 600, what is the profit percentage?
15%
18%
20%
25%
Explanation - Profit = 600 - 500 = 100. Profit% = (100/500) × 100 = 20%.
Correct answer is: 20%
Q.18 A student answered 60% of questions correctly in a test of 50 questions. How many questions were correct?
25
28
30
32
Explanation - Correct answers = 60% of 50 = 30.
Correct answer is: 30
Q.19 If the price of petrol increases by 25% and consumption is reduced by 20%, what is the net change in expenditure?
Increase 0%
Increase 2%
Increase 5%
Decrease 0%
Explanation - Net effect = 25% - 20% - (25% × 20%)/100 = 0%.
Correct answer is: Increase 0%
Q.20 What is the percentage form of 3/20?
10%
12%
15%
20%
Explanation - 3/20 × 100 = 15%.
Correct answer is: 15%
Q.21 If a number is 30% less than 200, what is the number?
130
140
150
160
Explanation - 30% of 200 = 60. So, number = 200 - 60 = 140.
Correct answer is: 140
Q.22 The price of an article was 1200. It was first decreased by 10% and then increased by 10%. What is the final price?
1200
1188
1190
1210
Explanation - After 10% decrease = 1080. After 10% increase = 1188.
Correct answer is: 1188
Q.23 If 12% of x is equal to 72, what is x?
500
550
600
650
Explanation - 12% of x = 72 → x = 72 × 100 / 12 = 600.
Correct answer is: 600
Q.24 If the marked price of an item is 2000 and the shopkeeper offers two successive discounts of 10% each, what is the selling price?
1600
1620
1640
1650
Explanation - First discount = 200. Price = 1800. Second discount = 180. Price = 1620.
Correct answer is: 1620