Percentage Questions for RRB ALP: Practice Top Repeated Questions Now

Are you preparing for the RRB ALP 2026 exam? Becoming an Assistant Loco Pilot (ALP) is a matter of great pride. However, to get this uniform, you must first pass the computer-based tests (CBT 1 and CBT 2). For many students, the Mathematics section feels like a very big and tough task. You might be worried about long calculations and tough formulas. But most candidates don’t know that Mathematics in the RRB ALP exam is mostly based on logic, not hard formulas. If you want to make Math your strongest subject, you must start with the “Percentage” chapter. Why? Because Percentage is the heart of Arithmetic. If you understand this one topic, you will automatically become a master in Profit & Loss, Simple Interest, and Data Interpretation. To help you prepare without any stress, we have explained this topic in the simplest way possible and provided the top questions asked in Railway exams.

What is Percentage? (Explained in Simple Words)

Let us understand this without any complex math books. The word “Percent” is made of two small words: “Per” (meaning for every) and “Cent” (meaning 100). So, Percentage simply means “out of 100.” Imagine you have a phone battery. When it says 100%, it means the battery is totally full. When it says 50%, it means exactly half of the battery is left. In exams, if you score 40 marks out of 100, your score is 40%. If a pizza has 4 slices and you eat 1 slice, you ate 1 out of 4 (1/4). In terms of percentage, that is 25%.

The Magic Rule:

• To convert any fraction into a percentage, just multiply it by 100. (Example: 1/2 x 100 = 50%)
• To remove the percentage sign, just divide the number by 100. (Example: 20% = 20/100)

If you keep the number 100 in your mind, you can solve any percentage question in the RRB ALP exam easily!

Important Percentage Questions for RRB ALP

Here is a quick challenge for you. Grab a pen and a rough sheet, and try to solve these simple exam-level questions. Also, we have provided a PDF in which we have provided more exam-level percentage questions. You can download the PDF for free and can practice more questions.

Q1. What is 20% of 500?

(A) 50
(B) 100
(C) 150
(D) 200

Answer: (B) 100

Explanation:
10% of 500 = 50
20% = 2 × 50 = 100

Q2. Rahul’s salary was ₹20,000. It was increased to ₹24,000. What is the percentage increase?

(A) 15%
(B) 20%
(C) 25%
(D) 10%

Answer: (B) 20%

Explanation:
Increase = 24,000 − 20,000 = 4,000
Percentage increase = (4000 / 20000) × 100 = 20%

Q3. If 15% of a number is 45, what is the number?

(A) 200
(B) 250
(C) 300
(D) 350

Answer: (C) 300

Explanation:
15% = 45
1% = 45 ÷ 15 = 3
100% = 3 × 100 = 300

Q4. A student needs 40% marks to pass. He gets 30 marks and fails by 10 marks. What are the total marks?

(A) 100
(B) 150
(C) 200
(D) 250

Answer: (A) 100

Explanation:
Passing marks = 30 + 10 = 40
40% = 40
100% = 100

Q5. The population of a town increases by 10% every year. Current population is 10,000. What will be the population after 2 years?

(A) 12,000
(B) 12,100
(C) 11,000
(D) 12,500

Answer: (B) 12,100

Explanation:
After 1 year:
10% of 10,000 = 1,000 → Population = 11,000

After 2 years:
10% of 11,000 = 1,100 → Population = 12,100

Q6. If A’s salary is 25% more than B’s salary, then B’s salary is how much percent less than A’s salary?

(A) 20%
(B) 25%
(C) 15%
(D) 30%

Answer: (A) 20%

Explanation:
Let B = 100
Then A = 125

Difference = 25
Percentage = (25 / 125) × 100 = 20%

Q7. In an election, the winner got 60% of the votes and won by 400 votes. Find the total votes.

(A) 1000
(B) 1500
(C) 2000
(D) 2500

Answer: (C) 2000

Explanation:
Winner = 60%, Loser = 40%
Difference = 20%

20% = 400
100% = 400 × 5 = 2000

Q8. The price of petrol increases by 20%. By what percent should consumption be reduced to keep expenditure the same?

(A) 20%
(B) 16.66%
(C) 25%
(D) 15%

Answer: (B) 16.66%

Explanation:
Required reduction = (Increase / (100 + Increase)) × 100

= (20 / 120) × 100
= 16.66%

Q9. Convert 3/4 into a percentage.

(A) 50%
(B) 60%
(C) 75%
(D) 80%

Answer: (C) 75%

Explanation:
3/4 × 100 = 75%

Q10. A shopkeeper gives a 10% discount on a shirt priced at ₹500. What is the selling price?

(A) 400
(B) 450
(C) 490
(D) 480

Answer: (B) 450

Explanation:
10% of 500 = 50
Selling price = 500 − 50 = 450

5 Simple Tips to Prepare Percentage for RRB ALP

You do not need to be a math topper to score full marks in this section. You just need to be smart. Here are 5 very easy tips to master Percentage questions without using long formulas:

1. Memorize the Fraction Table: This is your biggest weapon. Learn the percentage values of basic fractions. For example, 1/2 is 50%, 1/3 is 33.33%, 1/4 is 25%, and 1/5 is 20%. This will save you huge time in the exam hall.
2. Always Assume 100: Whenever a question does not give you an original number, simply assume it is 100. If the price increases by 20%, make it 120. If it decreases by 10%, make it 90. It makes calculation extremely easy.
3. Find the 10% Trick: If you want to find 10% of any number, just remove the last zero (or put a decimal before the last digit). 10% of 850 is 85. 10% of 345 is 34.5. Once you know 10%, you can easily double it to find 20%, or halve it to find 5%.
4. Read the Question Twice: Many students make silly mistakes because they read too fast. Always check if the question is asking for the “increased value” or the “original value.” Reading slowly prevents negative marking.
5. Practice Without a Calculator: During your daily study time, hide your mobile phone calculator. The RRB ALP exam will not allow calculators. Doing calculations on paper will train your brain to work faster.

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