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RRB JE · Mathematics

Percentage Previous Year Questions

52 Percentage (Mathematics) questions asked in RRB JE previous year papers, each with the correct answer and explanation. Read them free on UTpaper, or attempt the full papers as timed online tests.

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Time, Speed & Distance 52Number System 52Profit & Loss 51Mensuration 51Ratio & Proportion 42Algebra 37Statistics 37Simple & Compound Interest 36Time & Work 30Simplification 29Average 29Geometry 11Problems on Ages 9
Q1RRB JE CBT-1, 18 Dec 2024, Shift 3 (4:30 PM)
A trader lost 10% by selling a shirt for ₹850. He will gain x%' by selling it for ₹1530, the value of x is:
  1. A77
  2. B52
  3. C72
  4. D62
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Correct answer: (D) 62

Q2RRB JE CBT-1, 18 Dec 2024, Shift 3 (4:30 PM)
If A's salary is 31 % more than that of B, then how much percent is B's salary less than that of A (correct to 2 decimal places)?
  1. A23.66%
  2. B21.53%
  3. C27.46%
  4. D21.74%
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Correct answer: (A) 23.66%

Q3RRB JE CBT-1, 18 Dec 2024, Shift 3 (4:30 PM)
A number when increased by 50 %', gives 2970. The number is:
  1. A1980
  2. B5940
  3. C3960
  4. D990
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Correct answer: (A) 1980

Q4RRB JE CBT-1, 18 Dec 2024, Shift 2 (12:45 PM)
If A's salary is 72 % more than that of B, then how much percent is B's salary less than that of A (correct to 2 decimal places)?
  1. A44.19%
  2. B41.86%
  3. C45.3%
  4. D44.24%
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Correct answer: (B) 41.86%

Q5RRB JE CBT-1, 18 Dec 2024, Shift 2 (12:45 PM)
A number when increased by 50 %', gives 2880. The number is:
  1. A3840
  2. B1920
  3. C5760
  4. D960
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Correct answer: (B) 1920

Q6RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A trader lost 10% by selling a shirt for ₹850. He will gain x%' by selling it for ₹1360, the value of x is:
  1. A44
  2. B54
  3. C59
  4. D34
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Correct answer: (A) 44

Q7RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
A number when increased by 50 %, gives 2850. The number is:
  1. A950
  2. B3800
  3. C5700
  4. D1900
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Correct answer: (D) 1900

Q8RRB JE CBT-1, 18 Dec 2024, Shift 1 (9:00 AM)
The cost of a washing machine is 25% less than the cost of a TV. If the cost of the washing machine increases by 82% and that of the TV decreases by 16%, then what is the change in the total cost of 8 washing machines and 9 TVs?
  1. AIncrease by 23.2%
  2. BIncrease by 20%
  3. CDecrease by 24%
  4. DDecrease by 21%
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Correct answer: (A) Increase by 23.2%

Q9RRB JE CBT-1, 17 Dec 2024, Shift 3 (4:30 PM)
A trader lost 10% by selling a shirt for ₹840. He will gain x%' by selling it for ₹1540, the value of x is:
  1. A75
  2. B55
  3. C80
  4. D65
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Correct answer: (D) 65

Q10RRB JE CBT-1, 17 Dec 2024, Shift 3 (4:30 PM)
The population of a town in 1974 was 222900. If its population increased in two successive decades by 50% in each decade, the population of the town in 1994 was:
  1. A501525
  2. B501521
  3. C501520
  4. D501526
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Correct answer: (A) 501525

Q11RRB JE CBT-1, 17 Dec 2024, Shift 3 (4:30 PM)
A number when increased by 50 %', gives 3120. The number is:
  1. A1040
  2. B6240
  3. C2080
  4. D4160
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Correct answer: (C) 2080

Q12RRB JE CBT-1, 17 Dec 2024, Shift 2 (12:45 PM)
A number when increased by 50 %', gives 2790. The number is:
  1. A5580
  2. B930
  3. C3720
  4. D1860
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Correct answer: (D) 1860

Q13RRB JE CBT-1, 17 Dec 2024, Shift 2 (12:45 PM)
The population of a town in 1927 was 232300. If its population increased in two successive decades by 30% in each decade, the population of the town in 1947 was:
  1. A392583
  2. B392585
  3. C392592
  4. D392587
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Correct answer: (D) 392587

Q14RRB JE CBT-1, 17 Dec 2024, Shift 1 (9:00 AM)
A number when increased by 50 %', gives 2760. The number is:
  1. A1840
  2. B3680
  3. C5520
  4. D920
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Correct answer: (A) 1840

Q15RRB JE CBT-1, 17 Dec 2024, Shift 1 (9:00 AM)
A man spends 76% of his monthly salary (in ₹) on the rent of his house. If every month he also spends ₹813 on his conveyance and ₹2508 on his grocery and saves the remaining ₹687, his monthly salary (in ₹) is:
  1. A16700
  2. B16611
  3. C16621
  4. D16617
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Correct answer: (A) 16700

Q16RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)
If A's salary is 37 % more than that of B, then how much percent is B's salary less than that of A (correct to 2 decimal places)?
  1. A29.04%
  2. B30.86%
  3. C29.85%
  4. D27.01%
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Correct answer: (D) 27.01%

Q17RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)
A number when increased by 50 %', gives 2910. The number is:
  1. A5820
  2. B1940
  3. C3880
  4. D970
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Correct answer: (B) 1940

Q18RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)
Refer to the given number, symbol series and answer the question that follows. Counting to be done from left to right only. (Left) 2 3 $ 7 5 & 6 % 3 $ # 9 @ ) 7 + 6 ? > ? 4 7 5 $ (Right) How many such numbers are there each of which is immediately preceded by a symbol and also immediately followed by another symbol?
  1. A4
  2. B5
  3. C6
  4. D7
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Correct answer: (B) 5

Q19RRB JE CBT-1, 16 Dec 2024, Shift 3 (4:30 PM)
A vendor bought lemons at 40 for a rupee. How many must he sell for a rupee to gain 25%?
  1. A34
  2. B36
  3. C33
  4. D32
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Correct answer: (D) 32

Q20RRB JE CBT-1, 16 Dec 2024, Shift 2 (12:45 PM)
If the radius of a hemisphere is increased by 50%, then find the percentage increase in the volume. (Take π = 22/7)
  1. A112.5%
  2. B150%
  3. C125%
  4. D137.5%
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Correct answer: (C) 125%

Explanation

Official answer key: (3) 125% Correct answer should be 237.5% (not in the options). Volume of a hemisphere = (2/3)πr³, so when r becomes 1.5r the volume becomes 1.5³ = 3.375 times, an increase of 237.5%. 125% is the increase in the curved surface area (1.5² = 2.25 times), not the volume. Scoring follows the official key.

Q21RRB JE CBT-1, 16 Dec 2024, Shift 2 (12:45 PM)
A number when increased by 50 %', gives 3030. The number is:
  1. A1010
  2. B6060
  3. C2020
  4. D4040
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Correct answer: (C) 2020

Q22RRB JE CBT-1, 16 Dec 2024, Shift 2 (12:45 PM)
Refer to the given number, symbol series and answer the question that follows. Counting to be done from left to right only. (Left) 7 5 ^ 5 + % 5 6 $ 2 3 * 6 + 3 & 4 ? $ # 6 1 2 3 & 6 3 % @ (Right) How many such symbols are there each of which is immediately preceded by a number and immediately followed by another symbol?
  1. A1
  2. B4
  3. C2
  4. D3
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Correct answer: (D) 3

Q23RRB JE CBT-1, 16 Dec 2024, Shift 2 (12:45 PM)
The cost of a washing machine is 40% less than the cost of a TV. If the cost of the washing machine increases by 64% and that of the TV decreases by 20%, then what is the change in the total cost of 5 washing machines and 7 TVs?
  1. AIncrease by 13%
  2. BDecrease by 4%
  3. CIncrease by 5.2%
  4. DDecrease by 5%
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Correct answer: (C) Increase by 5.2%

Q24RRB JE CBT-1, 16 Dec 2024, Shift 2 (12:45 PM)
According to the Annual Report 2019-20 of the Ministry of Textiles, India's textile industry contributes what percentage to the industry output, in value terms?
  1. A18%
  2. B15%
  3. C6%
  4. D7%
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Correct answer: (D) 7%

Q25RRB JE CBT-1, 16 Dec 2024, Shift 1 (9:00 AM)
A number when increased by 50 %', gives 2820. The number is:
  1. A3760
  2. B940
  3. C1880
  4. D5640
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Correct answer: (C) 1880

Q26RRB JE CBT-1, 16 Dec 2024, Shift 1 (9:00 AM)
The cost of a washing machine is 75% less than the cost of a TV. If the cost of the washing machine increases by 77% and that of the TV decreases by 27%, then what is the change in the total cost of 8 washing machines and 2 TVs?
  1. AIncrease by 31%
  2. BIncrease by 25%
  3. CDecrease by 22%
  4. DDecrease by 29%
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Correct answer: (B) Increase by 25%

Q27RRB JE CBT-1, 25 Feb 2026, Shift 3 (4:30 PM)
Girish scored 695 marks in an examination and was 17 marks short of 89% of the maximum marks. In the same examination, his friend scored 688 marks. What is the percentage of marks scored by his friend?
  1. A84%
  2. B83%
  3. C86%
  4. D87%
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Correct answer: (C) 86%

Q28RRB JE CBT-1, 25 Feb 2026, Shift 3 (4:30 PM)
As per the India Meteorological Department (IMD), what is the approximate total annual normal rainfall received in the Thar Desert, which has a coefficient of variation (CV) of about 38%?
  1. A250 mm per year
  2. B200 mm per year
  3. C150 mm per year
  4. D50 mm per year
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Correct answer: (A) 250 mm per year

Q29RRB JE CBT-1, 25 Feb 2026, Shift 3 (4:30 PM)
The monthly income of Chetan is ₹60,000 and his expenditure is ₹35,000. If his income increases by 25%, and his expenditure increases by 15%, then what will be the percentage increase in his savings?
  1. A35%
  2. B36%
  3. C39%
  4. D38%
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Correct answer: (C) 39%

Q30RRB JE CBT-1, 25 Feb 2026, Shift 3 (4:30 PM)
Refer to the following letter, number, symbol series and answer the question that follows. (NOTE: All numbers are single digit numbers only) Counting to be done from left to right only. (Left) H 9 & 3 L ! 6 M $ 7 R @ 4 C % 2 F # 5 K * 8 P (Right) How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by another symbol?
  1. ATwo
  2. BNone
  3. COne
  4. DThree
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Correct answer: (B) None

Q31RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)
In an election between two candidates, 86% of the registered voters cast their votes and 6% of the votes polled were found invalid. The winning candidate got 58% of the valid votes and won the election by a margin of 202100 votes. How many voters were registered?
  1. A1562400
  2. B1562500
  3. C1562800
  4. D1562200
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Correct answer: (B) 1562500

Q32RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)
Rupesh’s salary was first reduced by 44% and subsequently raised by 15%. How much percentage was his final salary lower compared to his initial salary?
  1. A35.6%
  2. B6.6%
  3. C29%
  4. D15%
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Correct answer: (A) 35.6%

Q33RRB JE CBT-1, 20 Feb 2026, Shift 3 (4:30 PM)
Garima bought an original hardbound book for ₹56,000. Its value depreciates by 5% per year. What will be the price (in ₹) of the book after 3 years?
  1. A47,052
  2. B48,013
  3. C48,512
  4. D48,713
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Correct answer: (B) 48,013

Q34RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)
Which of the following statements regarding the Namo Drone Didi scheme is/are correct? 1. It is a Central Sector Scheme for providing drones to Women Self Help Groups for the period from 2024-25 to 2025-26 with an outlay of ₹1,261 crore. 2. The scheme aims to provide drones to 15,000 selected Women Self Help Groups for providing rental services to farmers for agriculture purposes. 3. Under the scheme, Women Self Help Groups receive substantial financial assistance, covering 80% of the drone and accessory costs, up to ₹8 lakh.
  1. AOnly 3
  2. B1, 2 and 3
  3. COnly 2 and 3
  4. DOnly 1 and 2
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Correct answer: (B) 1, 2 and 3

Q35RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)
A shopkeeper bought six identical mobile phones for ₹45,000. He sold two of these mobile phones for ₹42,000. Find his gain percentage.
  1. A178%
  2. B179%
  3. C180%
  4. D181%
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Correct answer: (C) 180%

Q36RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)
The price of fuel decreases by 55%, 55% and 30% in three successive months, but increases by 50% in the fourth month. What is the percentage increase/decrease in the price of fuel in the fourth month as compared to its original price? [Give your answer correct to two places after decimal.]
  1. ADecreases by 81.55%
  2. BIncreases by 75.63%
  3. CDecreases by 78.74%
  4. DIncreases by 76.66%
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Correct answer: (C) Decreases by 78.74%

Q37RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)
Suman’s earnings in a month are five-sevenths of Meera’s. In the next month, Meera’s earnings become five-eighths of Suman’s previous month earnings. By what percent are Meera’s current earnings less than Suman’s current earnings?
  1. A20%
  2. B37.5%
  3. C35.5%
  4. D25%
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Correct answer: (B) 37.5%

Q38RRB JE CBT-1, 20 Feb 2026, Shift 2 (12:45 PM)
Monthly income of Mohit is ₹12800 and his monthly expenditure is ₹ 4000. If his income is decreased by 25% and expenditure is decreased by ₹ 1000, then find the decrease in his monthly savings?
  1. A₹ 2600
  2. B₹ 2800
  3. C₹ 2400
  4. D₹ 2200
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Correct answer: (D) ₹ 2200

Q39RRB JE CBT-1, 20 Feb 2026, Shift 1 (9:00 AM)
In this question, a group of numbers/symbols is coded using letter codes as per the codes given below and the conditions which follow. The correct combination of codes following the conditions is your answer. If none of the conditions follow, then codes for the respective Number/Symbol are to be followed directly as given in the table. Number/symbol 2@ 58 $9& % #6+731 Code P TF JW A E RD Q S B U L Conditions: If the first element is a number and the last a symbol, the codes for these two (the first and the last elements) are to be interchanged. If the first element is an even number and the last an odd number, the first and last elements are to be coded as $. If both the second and third elements are perfect cubes, the third element is to be coded as the code for the second element. What is the code for the following group of numbers/symbols? 28%5
  1. APRJF
  2. B$RJ$
  3. CPJRF
  4. D$JR$
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Correct answer: (D) $JR$

Q40RRB JE CBT-1, 20 Feb 2026, Shift 1 (9:00 AM)
Girish scored 664 marks in an examination and was 8 marks short of 84% of the maximum marks. In the same examination, his friend scored 472 marks. What is the percentage of marks scored by his friend?
  1. A59%
  2. B61%
  3. C56%
  4. D58%
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Correct answer: (A) 59%

Q41RRB JE CBT-1, 20 Feb 2026, Shift 1 (9:00 AM)
The population of country is 10 crores at present and is expected to grow to 17.28 crores in the next three years. Neglecting the death rate, the uniform annual percentage rate of growth is:
  1. A11
  2. B20
  3. C10
  4. D12
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Correct answer: (B) 20

Q42RRB JE CBT-1, 20 Feb 2026, Shift 1 (9:00 AM)
Chetan’s salary was first reduced by 40% and subsequently raised by 24%. How much percentage was his final salary lower compared to his initial salary?
  1. A24%
  2. B40%
  3. C25.6%
  4. D9.6%
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Correct answer: (C) 25.6%

Q43RRB JE CBT-1, 19 Feb 2026, Shift 3 (4:30 PM)
If 15% of A is equal to 20% of B and 10% of B is equal to 25% of C, what is the ratio of A : B : C?
  1. A8:7:6
  2. B20:15:6
  3. C12:9:7
  4. D22:17:11
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Correct answer: (B) 20:15:6

Q44RRB JE CBT-1, 19 Feb 2026, Shift 3 (4:30 PM)
The price of fuel decreases by 35%, 10% and 50% in three successive months, but increases by 40% in the fourth month. What is the percentage increase/decrease in the price of fuel in the fourth month as compared to its original price?
  1. AIncreases by 64.45%
  2. BIncreases by 56.75%
  3. CDecreases by 59.05%
  4. DDecreases by 63.97%
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Correct answer: (C) Decreases by 59.05%

Q45RRB JE CBT-1, 19 Feb 2026, Shift 3 (4:30 PM)
In what ratio must a fruit vendor mix two varieties of mangoes costing ₹60/kg and ₹68.40/kg, so that by selling the mixed variety of mangoes at ₹79.80/kg, he may gain 18.75%?
  1. A7 : 3
  2. B6 : 1
  3. C3 : 7
  4. D1 : 6
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Correct answer: (D) 1 : 6

Q46RRB JE CBT-1, 19 Feb 2026, Shift 2 (12:45 PM)
What is the mass by mass percentage of salt in a solution prepared by dissolving 10 g of salt in 90 g of water?
  1. A90%
  2. B1%
  3. C100%
  4. D10%
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Correct answer: (D) 10%

Q47RRB JE CBT-1, 19 Feb 2026, Shift 2 (12:45 PM)
In this question, a group of number/symbol is coded using letter codes as per the codes given below and the conditions which follow. The correct combination of codes following the conditions is your answer. If none of the conditions follow, then codes for the respective Number/Symbol to be followed directly as given in the table. Number/symbol 2 @9 5 $ 3 & % # 7 + 4 8 6 Code P T L J A WE Q D R S B U F Conditions – If the first element is a number and the last a symbol, the codes for these two (the first and the last elements) are to be interchanged. If the first element is an odd number and the last an even number, the first and last elements are to be coded as * If both second and third elements are perfect squares, the third element is to be coded as the code for the second element. What will be the code for the following group of number-symbol? 537+
  1. ASWRJ
  2. BJWRS
  3. CJRWS
  4. DSRWJ
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Correct answer: (A) SWRJ

Q48RRB JE CBT-1, 19 Feb 2026, Shift 2 (12:45 PM)
Mr. Madan got 9 out of 10 marks in English, 15 out of 16 in life sciences and the ratio of the percentage of his marks in English and Mathematics is 15: 16. If the total marks of Mathematics are 20, then find the difference of the percentage of his marks in Mathematics and life sciences.
  1. A3.5%
  2. B4.35%
  3. C2.25%
  4. D5.25%
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Correct answer: (C) 2.25%

Q49RRB JE CBT-1, 19 Feb 2026, Shift 2 (12:45 PM)
A shopkeeper bought six identical mobile phones for ₹72,000. He sold two of these mobile phones for ₹42,000. Find his gain percentage.
  1. A78%
  2. B76%
  3. C75%
  4. D77%
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Correct answer: (C) 75%

Q50RRB JE CBT-1, 19 Feb 2026, Shift 1 (9:00 AM)
Ajay spends 80% of his income. His income is increased by 30%, and his expenditure is increased by 10%. Find the percentage increase in his savings.
  1. A105%
  2. B100%
  3. C90%
  4. D110%
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Correct answer: (D) 110%

How to use these RRB JE Mathematics questions

Every question here was asked in a real RRB JE paper; the paper and shift are shown on the card, and the number opens the question on its own page. Try each one before tapping Show answer, then attempt the full RRB JE papers as timed tests to check your speed under exam conditions.

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