Question 1

The price of a commodity increased from ₹400 to ₹500. What is the percentage increase in price?

Accepted Answer

Step 1: Calculate the increase in price = 500 - 400 = ₹100. Step 2: Apply percentage change formula: (Change / Original) × 100 = (100 / 400) × 100 = 25%. Therefore, the percentage increase is 25%.

Question 2

A salary was reduced by 20%. If the reduced salary is ₹12,000, what was the original salary?

Accepted Answer

Step 1: If salary is reduced by 20%, the new salary is 80% of the original. Step 2: Let original salary = x. Then 80% of x = 12,000. Step 3: (80/100) × x = 12,000. Step 4: x = 12,000 × (100/80) = 12,000 × 1.25 = ₹15,000. Therefore, the original salary was ₹15,000.

Question 3

A shopkeeper sells an item for ₹450, which is 125% of its cost price. What is the cost price of the item?

Accepted Answer

Step 1: Let cost price = CP. Step 2: Selling price = 125% of CP, so 450 = 1.25 × CP. Step 3: CP = 450 ÷ 1.25 = ₹360.

Question 4

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

Accepted Answer

Step 1: Increase = 250 - 200 = ₹50. Step 2: Percentage increase = (Increase ÷ Original) × 100 = (50 ÷ 200) × 100. Step 3: = 0.25 × 100 = 25%.

Question 5

A village had a population of 80,000 in 2019. The population decreased by 15% in 2020. What was the population at the end of 2020?

Accepted Answer

Step 1: Initial population = 80,000. Step 2: Decrease = 15% of 80,000 = 0.15 × 80,000 = 12,000. Step 3: Population at end of 2020 = 80,000 - 12,000 = 68,000.

Question 6

A student scored 72% in English and 88% in Mathematics. If the maximum marks in each subject is 150, what is the total percentage of marks obtained?

Accepted Answer

Step 1: Marks in English = 72% of 150 = 0.72 × 150 = 108. Step 2: Marks in Mathematics = 88% of 150 = 0.88 × 150 = 132. Step 3: Total marks obtained = 108 + 132 = 240. Step 4: Total maximum marks = 150 + 150 = 300. Step 5: Total percentage = (240/300) × 100 = 80%.

Question 7

The population of a town increased from 200,000 to 250,000 over one year. What was the percentage increase in population?

Accepted Answer

Step 1: Initial population = 200,000. Step 2: Final population = 250,000. Step 3: Increase = 250,000 - 200,000 = 50,000. Step 4: Percentage increase = (Increase / Initial) × 100 = (50,000 / 200,000) × 100 = 25%.

Question 8

A product's cost increased by 30%. If the original cost was ₹1,000, what is the new cost?

Accepted Answer

Step 1: Calculate the increase amount = 30% of 1,000 = (30/100) × 1,000 = ₹300. Step 2: New cost = Original cost + Increase = 1,000 + 300 = ₹1,300. Therefore, the new cost is ₹1,300.

Question 9

A student needs to score 40% to pass an exam. If the maximum marks is 250, how many marks must the student score to pass?

Accepted Answer

Step 1: Passing marks = 40% of 250 = 0.40 × 250 = 100. Therefore, the student must score at least 100 marks to pass.

Question 10

In a school, 40% of students are boys. If there are 480 boys, what is the total number of students in the school?

Accepted Answer

Step 1: Let total students = T. Step 2: 40% of T = 480, so 0.40 × T = 480. Step 3: T = 480 ÷ 0.40 = 1200.

Question 11

In an election, candidate A received 55% of the votes and candidate B received the remaining votes. If the total number of votes cast was 8000, how many more votes did A receive than B?

Accepted Answer

Step 1: Votes for A = 55% of 8000 = 0.55 × 8000 = 4400. Step 2: Votes for B = 45% of 8000 = 0.45 × 8000 = 3600. Step 3: Difference = 4400 - 3600 = 800.

Question 12

A student scored 72% marks in an exam. If the total marks were 150, how many marks did the student score?

Accepted Answer

Step 1: Marks scored = 72% of 150. Step 2: = 0.72 × 150 = 108 marks.

Question 13

The population of a city was 500,000 in 2020. If the population increased by 20% in 2021, what was the population at the end of 2021?

Accepted Answer

Step 1: Initial population = 500,000. Step 2: Increase = 20% of 500,000 = 0.20 × 500,000 = 100,000. Step 3: Population at end of 2021 = 500,000 + 100,000 = 600,000.

Question 14

A discount of 15% is offered on an item marked at ₹800. What is the selling price after discount?

Accepted Answer

Step 1: Discount = 15% of ₹800 = 0.15 × 800 = ₹120. Step 2: Selling price = Marked price - Discount = 800 - 120 = ₹680.

Question 15

The price of a commodity increased by 20% last year and decreased by 10% this year. If the original price was ₹500, what is the current price?

Accepted Answer

Step 1: Price after 20% increase = 500 + 20% of 500 = 500 + 100 = 600. Step 2: Price after 10% decrease = 600 - 10% of 600 = 600 - 60 = 540. Therefore, current price is ₹540.

Question 16

A company's revenue increased from ₹40 lakhs to ₹50 lakhs. What is the percentage increase in revenue?

Accepted Answer

Step 1: Increase in revenue = 50 - 40 = 10 lakhs. Step 2: Percentage increase = (Increase / Original) × 100 = (10 / 40) × 100 = 25%.

Question 17

A shopkeeper reduced the price of an item from ₹800 to ₹600. What is the percentage decrease?

Accepted Answer

Step 1: Calculate the decrease = 800 - 600 = ₹200. Step 2: Apply percentage decrease formula: (Decrease / Original) × 100 = (200 / 800) × 100 = 25%. Therefore, the percentage decrease is 25%.

Question 18

The population of a town decreased from 50,000 to 40,000. What is the percentage decrease in population?

Accepted Answer

Step 1: Calculate the decrease = 50,000 - 40,000 = 10,000. Step 2: Apply percentage decrease formula: (10,000 / 50,000) × 100 = (1/5) × 100 = 20%. Therefore, the percentage decrease is 20%.

Question 19

A shopkeeper marks his goods at 40% above the cost price. If he gives a discount of 10% on the marked price, what is his profit percentage?

Accepted Answer

Step 1: Let cost price = 100. Marked price = 100 + 40% of 100 = 140. Step 2: Discount = 10% of 140 = 14. Selling price = 140 - 14 = 126. Step 3: Profit = 126 - 100 = 26. Profit percentage = (26/100) × 100 = 26%.

Question 20

If 35% of a number is 140, what is 60% of that number?

Accepted Answer

Step 1: Let the number = N. Step 2: 35% of N = 140, so 0.35 × N = 140. Step 3: N = 140 ÷ 0.35 = 400. Step 4: 60% of 400 = 0.60 × 400 = 240.

IBPS RRB PO Percentage Questions

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