RRB NTPC UG Percentage Questions 2025, Top 20 Most Expected Quant Questions and Solutions

The RRB NTPC UG Exam 2025 includes percentage-based questions as a vital part of the quantitative aptitude section. These questions are simple yet scoring and test your ability to calculate percentage increases, decreases, comparisons, and real-life applications like profit and loss. To help aspirants prepare effectively, we’ve compiled the Top 20 Most Expected Percentage Questions with multiple-choice options, correct answers, and step-by-step solutions. Regular practice of these questions will boost your speed, accuracy, and confidence in the actual exam.

RRB NTPC UG Percentage Questions 2025

Percentage-based questions in the RRB NTPC UG Exam 2025 test your understanding of numerical data, comparisons, and real-life applications such as profit & loss, discounts, and data interpretation. The RRB NTPC UG Percentage Questions 2025 are usually straightforward but require quick calculation skills.

Practicing regularly with concept-based and tricky percentage problems can enhance both your speed and accuracy. Below are the most expected questions with step-by-step explanations.

RRB NTPC UG Percentage Questions 2025 Overview

Percentage questions in the RRB NTPC UG Exam 2025 are easy and concept-based. Candidates can expect 2-3 questions from this topic in the CBT Stage 1 Quant section.

RRB NTPC UG Percentage Questions 2025 Overview
Topic Name	Percentage
Total Expected Questions	2-3 in CBT Stage 1
Difficulty Level	Easy to Moderate
Importance	High
Sub-topics	Basic %, % Change, Profit & Loss, DI
Scoring Potential	High (quick to solve)

Top 20 Most Expected Quant Questions in RRB NTPC UG Exam 2025

Q1. What is 20% of 250?

1. a) 40
2. b) 45
3. c) 50
4. d) 60

Answer: c) 50

Solution:

20% of 250 = (20/100) × 250 = 50

Q2. A number is increased by 20% and then decreased by 20%. What is the net change?

1. a) 4% increase
2. b) 4% decrease
3. c) No change
4. d) 1% increase

Answer: b) 4% decrease

Solution:

Net change = (20 × 20)/100 = 4%

Since it’s successive changes, the net effect is 4% decrease

Q3. If 60% of a number is 150, what is the number?

1. a) 200
2. b) 225
3. c) 250
4. d) 275

Answer: c) 250

Solution:

60% of x = 150 → (60/100)x = 150 → x = (150 × 100)/60 = 250

Q4. A student scored 420 marks out of 600. What is his percentage?

1. a) 60%
2. b) 65%
3. c) 70%
4. d) 75%

Answer: c) 70%

Solution:

(420/600) × 100 = 70%

Q5. What percent is 45 of 225?

1. a) 15%
2. b) 20%
3. c) 25%
4. d) 30%

Answer: b) 20%

Solution:

(45/225) × 100 = 20%

Q6. If the price of an item increases from ₹500 to ₹600, what is the percentage increase?

1. a) 10%
2. b) 15%
3. c) 20%
4. d) 25%

Answer: c) 20%

Solution:

Increase = 600 – 500 = ₹100

(100/500) × 100 = 20%

Q7. A number is 25% more than another. If the smaller number is 80, find the larger number.

1. a) 90
2. b) 95
3. c) 100
4. d) 105

Answer: c) 100

Solution:

25% of 80 = 20 → 80 + 20 = 100

Q8. What percent is 300 gm of 2 kg?

1. a) 10%
2. b) 15%
3. c) 20%
4. d) 25%

Answer: b) 15%

Solution:

2 kg = 2000 gm → (300/2000) × 100 = 15%

Q9. A student needs 40% to pass. He got 180 marks and failed by 20 marks. What are the total marks?

1. a) 400
2. b) 450
3. c) 500
4. d) 550

Answer: c) 500

Solution:

Pass marks = 180 + 20 = 200

Let total = x → 40% of x = 200 → x = (200 × 100)/40 = 500

Q10. If A’s salary is 25% more than B’s and B earns ₹40,000, what is A’s salary?

1. a) ₹42,000
2. b) ₹45,000
3. c) ₹48,000
4. d) ₹50,000

Answer: d) ₹50,000

Solution:

25% of 40,000 = 10,000 → A = 40,000 + 10,000 = ₹50,000

Q11. A reduction of 10% in price allows a person to buy 5 kg more rice for ₹900. Find the original price per kg.

1. a) ₹18
2. b) ₹20
3. c) ₹22
4. d) ₹25

Answer: a) ₹18

Solution:

Let original price be ₹x

(900/x) – (900/0.9x) = 5

Solve: 10x = 180 → x = ₹18

Q12. A number is increased by 10% and then decreased by 10%. What is the net change?

1. a) 1% increase
2. b) 1% decrease
3. c) No change
4. d) 2% decrease

Answer: b) 1% decrease

Solution:

Net effect = (10 × 10)/100 = 1% decrease

So, overall change = 1% decrease

Q13. If A’s income is 40% less than B’s, by what percent is B’s income more than A’s?

1. a) 40%
2. b) 50%
3. c) 60%
4. d) 66.67%

Answer: d) 66.67%

Solution:

Let B = 100 → A = 60

% more = (40/60) × 100 = 66.67%

Q14. The population of a town increases by 10% annually. What will it be after 2 years if current population is 20,000?

1. a) 22,000
2. b) 23,000
3. c) 24,000
4. d) 24,200

Answer: d) 24,200

Solution:

Population after 2 years = 20000 × (1.1)² = 20000 × 1.21 = 24,200

Q15. 10% of a number is added to 20% of 400 to get 130. Find the number.

1. a) 300
2. b) 400
3. c) 500
4. d) 600

Answer: c) 500

Solution:

Let number be x → x/10 + 80 = 130 → x = (130 – 80) × 10 = 500

Q16. A shopkeeper marks his goods 20% above the cost price and gives 10% discount. Find his profit %.

1. a) 6%
2. b) 7%
3. c) 8%
4. d) 10%

Answer: c) 8%

Solution:

Let CP = ₹100 → MP = ₹120 → SP = 120 – 12 = ₹108

Profit = ₹8 → Profit % = 8%

Q17. A machine depreciates 10% annually. What will be its value after 2 years if original price is ₹50,000?

1. a) ₹42,000
2. b) ₹44,500
3. c) ₹45,000
4. d) ₹40,500

Answer: d) ₹40,500

Solution:

Value = 50000 × (0.9)² = 50000 × 0.81 = ₹40,500

Q18. A number is increased by 30%. By what percent should the increased number be reduced to get the original number?

1. a) 20%
2. b) 23.08%
3. c) 25%
4. d) 30%

Answer: b) 23.08%

Solution:

Let original = 100 → new = 130

% decrease needed = (30/130) × 100 = 23.08%

Q19. If 75% of a class passed and 15 students failed, find total number of students.

1. a) 50
2. b) 55
3. c) 60
4. d) 65

Answer: c) 60

Solution:

25% = 15 → Total = (15/25) × 100 = 60

Q20. An article is sold at 20% loss. If sold for ₹240 more, there would be a 10% gain. Find cost price.

1. a) ₹1000
2. b) ₹1100
3. c) ₹1200
4. d) ₹1300

Answer: c) ₹1200

Solution:

Let CP = x

0.9x – 0.8x = ₹240 → 0.1x = 240 → x = ₹1200