Question 1

A shirt costs ₹800. Its price is increased by 20%. What is the new price?

Accepted Answer

Step 1: Original price = ₹800. Step 2: Increase = 20% of 800 = (20/100) × 800 = ₹160. Step 3: New price = Original price + Increase = 800 + 160 = ₹960. Therefore, the new price is ₹960.

Question 2

A book's price is reduced by 30%. If the original price was ₹500, what is the sale price?

Accepted Answer

Step 1: Original price = ₹500. Step 2: Reduction = 30% of 500 = (30/100) × 500 = ₹150. Step 3: Sale price = Original price − Reduction = 500 − 150 = ₹350. Therefore, the sale price is ₹350.

Question 3

In an exam, a student scored 72 marks out of 120. What is the percentage of marks obtained?

Accepted Answer

Step 1: Marks obtained = 72, Total marks = 120. Step 2: Percentage = (Marks obtained / Total marks) × 100. Step 3: Percentage = (72/120) × 100 = 0.6 × 100 = 60%. Therefore, the percentage is 60%.

Question 4

What is 25% of 480?

Accepted Answer

Step 1: Use the percentage formula: Percentage of a number = (Percentage/100) × Number. Step 2: 25% of 480 = (25/100) × 480 = 0.25 × 480 = 120. Therefore, the answer is 120.

Question 5

A shopkeeper buys an item for ₹200 and sells it at a profit of 35%. What is the selling price?

Accepted Answer

Step 1: Cost price = ₹200. Step 2: Profit = 35% of 200 = (35/100) × 200 = ₹70. Step 3: Selling price = Cost price + Profit = 200 + 70 = ₹270. Therefore, the selling price is ₹270.

Question 6

If 15% of a number is 45, what is the number?

Accepted Answer

Step 1: Let the number be x. Then 15% of x = 45. Step 2: (15/100) × x = 45. Step 3: 0.15x = 45. Step 4: x = 45 ÷ 0.15 = 300. Therefore, the number is 300.

Question 7

In an examination, a student scored 65% marks and obtained 520 marks. What are the total marks of the examination?

Accepted Answer

Step 1: Let total marks = x. Step 2: 65% of x = 520. Step 3: (65/100) × x = 520. Step 4: x = 520 × (100/65) = 520 × (20/13) = 40 × 20 = 800.

Question 8

A shopkeeper marks an item at ₹500. He offers a discount of 12% on the marked price. What is the selling price of the item?

Accepted Answer

Step 1: Marked Price = ₹500. Step 2: Discount = 12% of 500 = (12/100) × 500 = ₹60. Step 3: Selling Price = 500 − 60 = ₹440.

Question 9

The price of a commodity increased by 20% and then decreased by 10%. What is the net percentage change in the price?

Accepted Answer

Step 1: Let original price = ₹100. Step 2: After 20% increase: 100 + 20 = ₹120. Step 3: After 10% decrease on ₹120: 120 − (10/100)×120 = 120 − 12 = ₹108. Step 4: Net change = 108 − 100 = ₹8. Step 5: Net percentage change = (8/100) × 100 = 8% increase.

Question 10

A student's marks increased from 45 to 54. What is the percentage increase in marks?

Accepted Answer

Step 1: Original marks = 45. Step 2: New marks = 54. Step 3: Increase = 54 − 45 = 9. Step 4: Percentage increase = (Increase/Original) × 100 = (9/45) × 100 = (1/5) × 100 = 20%.

Question 11

A person spends 35% of his income on rent, 25% on food, and 15% on utilities. If he saves ₹5,000, what is his total monthly income?

Accepted Answer

Step 1: Total percentage spent = 35% + 25% + 15% = 75%. Step 2: Percentage saved = 100% − 75% = 25%. Step 3: 25% of income = ₹5,000. Step 4: Income = 5,000 × (100/25) = 5,000 × 4 = ₹20,000.

Question 12

A shopkeeper buys an item for ₹400 and marks it up by 50%. He then gives a discount of 20% on the marked price. What is his profit percentage?

Accepted Answer

Step 1: Cost Price (CP) = ₹400. Step 2: Marked Price (MP) = 400 + 50% of 400 = 400 + 200 = ₹600. Step 3: Discount = 20% of 600 = ₹120. Step 4: Selling Price (SP) = 600 − 120 = ₹480. Step 5: Profit = SP − CP = 480 − 400 = ₹80. Step 6: Profit% = (80/400) × 100 = 20%.

Question 13

A student scores 65% in Mathematics and 78% in English. The weightage for Mathematics is 40% and for English is 60%. What is the student's overall percentage?

Accepted Answer

Step 1: Weighted score = (Mathematics % × Math weightage) + (English % × English weightage). Step 2: Weighted score = (65 × 0.40) + (78 × 0.60). Step 3: = 26 + 46.8 = 72.8%.

Question 14

A person spends 30% of his income on rent, 25% on food, and 20% on transportation. The remaining amount is ₹6000. What is his total monthly income?

Accepted Answer

Step 1: Total percentage spent = 30% + 25% + 20% = 75%. Step 2: Remaining percentage = 100% - 75% = 25%. Step 3: If 25% of income = ₹6000, then income = 6000 ÷ 0.25 = ₹24000.

Question 15

The price of a commodity increases by 15% in the first year and by 10% in the second year. If the original price was ₹2000, what is the price after two years?

Accepted Answer

Step 1: Original price = ₹2000. Step 2: Price after first year = 2000 + (15% of 2000) = 2000 + 300 = ₹2300. Step 3: Price after second year = 2300 + (10% of 2300) = 2300 + 230 = ₹2530.

Question 16

A shopkeeper marks up goods by 60% above cost price. He then offers a discount of 25% on the marked price. If the cost price is ₹800, what is his profit percentage?

Accepted Answer

Step 1: Cost Price (CP) = ₹800. Step 2: Marked Price (MP) = 800 + (60% of 800) = 800 + 480 = ₹1280. Step 3: Discount = 25% of 1280 = ₹320. Step 4: Selling Price (SP) = 1280 - 320 = ₹960. Step 5: Profit = 960 - 800 = ₹160. Step 6: Profit % = (160/800) × 100 = 20%.

Question 17

In an election, candidate A received 45% of votes and candidate B received 35% of votes. The remaining votes were invalid. If the total number of votes cast was 8000, how many more votes did A receive than B?

Accepted Answer

Step 1: Total votes = 8000. Step 2: Votes for A = 45% of 8000 = 0.45 × 8000 = 3600. Step 3: Votes for B = 35% of 8000 = 0.35 × 8000 = 2800. Step 4: Difference = 3600 - 2800 = 800 votes.

Question 18

A number is increased by 20%, then the result is decreased by 20%. What is the net change in the original number as a percentage?

Accepted Answer

Step 1: Let original number = 100. Step 2: After 20% increase = 100 + 20 = 120. Step 3: After 20% decrease on 120 = 120 - (20% of 120) = 120 - 24 = 96. Step 4: Net change = 96 - 100 = -4. Step 5: Net change % = (-4/100) × 100 = -4% (a decrease of 4%).

IBPS Clerk Basic Percentage

IBPS Clerk Basic Percentage — Past Exam Questions

Basic Percentage— Rules & Concept

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60-Second Revision — Basic Percentage