The age of some students is given in years as 22, 23, 26, 28, 24, 29, 23, 27, 25 and 21. The median age (in years) of the students is:
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Correct answer: (A) 24.5
RRB JE · Topic-wise previous year questions
Mathematics Previous Year Questions (page 2)
561 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.
- 561 questions
- 14 topics
- Official answer key
- Free
Practise by topic
What are the units of inheritance, which Mendel referred to as 'factors,' now called?
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Correct answer: (D) Genes
Find the simple interest (in closest integral ₹) on ₹4000 at 5.25% per annum rate of interest for the period from 4 February 2024 to 5 April 2024
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Correct answer: (C) 35
The current ages of A and B add up to 36 years. Four years ago, the age of A was three times than that of B. What is the current age of A?
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Correct answer: (A) 25 years
A shopkeeper bought an article for ₹740. At what price (in ₹) should he sell the article to make 30% profit?
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Correct answer: (B) 962
Which law of refraction states that light bends due to a change in speed when passing from one medium to another?
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Correct answer: (D) Snell's law
Which major Indian port has become the first to operate under a Public-Private Partnership (PPP) model?
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Correct answer: (D) Jawaharlal Nehru Port
If a 3210 m long train crosses a pole in 107 seconds, then find the time (in seconds) taken by the train to cross a 150 m long platform.
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Correct answer: (D) 112
A trader claims to sell flour at a profit of 35%, but also dishonestly uses a weight which is 16% less than what is mentioned on it. Find the total percentage of profit earned by the trader. (Round the answer to the nearest whole number.)
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Correct answer: (D) 61%
Solve the following linear equation.
2x − y + z = 8, x + y − z = 10, x + y + 2z = 12
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Correct answer: (D) x = 6, y = 14/3, z = 2/3
If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 7381564, how many digits will appear more than once in the new number thus formed?
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Correct answer: (A) Three
Which two numbers should be interchanged to make the following equation correct? 58 + (36× 4)÷ 3 + 6× 8 −12 = 86
(Note: Interchange should be done of the entire number and not individual digits of a given number.)
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Correct answer: (B) 36 and 12
A number when increased by 50 %', gives 2880. The number is:
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Correct answer: (B) 1920
If at same rate of interest, in 2 years, the simple interest is ₹56 and compound interest is ₹58, then what is the principal (in ₹)?
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Correct answer: (A) 392
G, H, I, J, K, L and M live on seven different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, number 2 and so on, till the topmost floor is numbered 7. H lives on an even numbered floor but not on the second floor. Only three people live between H and M. J lives on one of the floors below H but immediately above M. G lives on one of floors below J. Only three people live between G and K. L lives on one of the floors above J but below I. Who lives on the fifth floor?
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Correct answer: (C) K
The greatest common divisor (GCD) and least common multiple (LCM) of two numbers are 12 and 480, respectively, and the numbers are in the ratio of 5 : 8. Find the difference between the two numbers.
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Correct answer: (A) 36
If 546 apples were distributed among Neeraj, Vidya, and Mohan in the ratio 1/6 : 1/2 : 1/3, how many apples did the Mohan get?
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Correct answer: (D) 182
If the average of 9 numbers is 17 and one number is removed, the average of the remaining 8 numbers becomes 15. What is the value of the removed number?
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Correct answer: (B) 33
Why is asexual reproduction advantageous for single-celled organisms?
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Correct answer: (C) It allows rapid reproduction in favourable conditions.
The average price of three items of furniture is Rs 16830. If their prices are in the ratio 3:5:7, the price of the cheapest item (in Rs) is
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Correct answer: (D) 10098
The magnetic field inside a solenoid:
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Correct answer: (A) is the same at all points
In △ABC, DE ∥ AC, where D and E are the points on sides AB and BC, respectively. If BD = 8 cm and AD = 7 cm, then what is the ratio of the area of △BDE to the trapezium ADEC?
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Correct answer: (C) 64:161
The total surface area of a solid hemisphere is 191 cm². Its radius (in cm) is: (Take π = 22/7)
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Correct answer: (C) √(1337/66)
What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
34 ÷ 33 × 22 + 19 − 40 = ?
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Correct answer: (B) 72
Two sets of numbers are given below. In each set of numbers, certain mathematical operation(s) on the first number result(s) in the second number. Similarly, certain mathematical operation(s) on the second number result(s) in the third number and so on. Which of the given options follows the same set of operations as in the given sets? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting /multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
19-57-114-134; 21-63-126-146
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Correct answer: (D) 16-48-96-116
What is the median of the following data?
78, 33, 59, 56, 61, 36, 48, 42, 97, 57, 62
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Correct answer: (C) 57
Two numbers are in the ratio 5 : 8. If the first number is increased by 13 and the second number is decreased by 6, then the ratio becomes 4 : 6. What is the sum of the original two numbers?
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Correct answer: (D) 663
The curved surface area of a cone is 5544 cm², and the diameter is 168 cm. What is its total surface area (in cm²)? (Use π = 22/7)
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Correct answer: (B) 27,720
With which of the following pricing approaches is a product's price equal to its marginal cost?
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Correct answer: (C) Marginal cost pricing
A trader lost 10% by selling a shirt for ₹850. He will gain x%' by selling it for ₹1360, the value of x is:
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Correct answer: (A) 44
If 1 is added to each odd digit and 1 is subtracted from each even digit in the number 8436152, then what will be the difference between the last and the first digits from the left in the number thus formed?
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Correct answer: (C) 6
By selling an article at 5/14 of its actual selling price, Hitesh incurs a loss of 20%. If he sells it at 80% of its actual selling price, then the profit percentage is:
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Correct answer: (D) 79.2%
Evaluate: 33 ÷ 9 × 3 - 2 × 4
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Correct answer: (A) 3
Himani travels a distance of 352 km with speed of 32 km/h and 330 km with 30 km/h by her car. Find the average speed (in km/h) of Himani.
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Correct answer: (A) 31
Sakshi invested a sum of ₹8900 at 10% per annum compound interest, componded annually. If she received an amount of ₹10769 after n years, the value of n is:
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Correct answer: (A) 2
The average price of three items of furniture is Rs 16455. If their prices are in the ratio 3:5:7, the price of the cheapest item (in Rs) is
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Correct answer: (D) 9873
A copper wire has a resistance of 10 Ω. If it is replaced with a wire of the same material and length but twice the cross-sectional area, its resistance will be ______.
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Correct answer: (C) 5 Ω
What is the smallest 4-digit number which, when divided by 12, 16, and 20, gives a remainder of 9?
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Correct answer: (A) 1209
A man walks to a viewpoint and returns to the starting point by his car maintaining constant speed and thus takes a total time of 6 hours 45 minutes. He would have gained 2 hours by driving both ways. How long would it have taken for him to walk both ways with same walking speed?
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Correct answer: (D) 8 hours 45 minutes
A and B complete a work in 18 days. If A alone can do it in 54 days then, B alone can do in______________(days).
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Correct answer: (B) 27
If A = 7.5°, what is the value of (12.8 × (1/√3) cot4A + 7.2 tan6A)?
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Correct answer: (C) 20
The average marks of some students in a class is 75. When five students are included, the average becomes 78 and the marks of those five students are 80, 85, 89, 81 and 82. Find the total number of students.
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Correct answer: (B) 9
A number when increased by 50 %, gives 2850. The number is:
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Correct answer: (D) 1900
A shopkeeper sells an item for ₹770.7 after giving two successive discounts of 58% and 80% on its marked price. Had he not given any discount, he would have earned a profit of 25%. What is the cost price (in ₹) of the item?
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Correct answer: (D) 7340
This question is based on the five, three-digit numbers given below.
(Left) 473 987 324 529 648 (Right)
(Example: 697 – First digit = 6, second digit = 9 and third digit = 7)
NOTE: All the operations to be performed from left to right.
The position of how many numbers will remain unchanged if all these numbers are arranged in ascending order?
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Correct answer: (A) None
The author of the famous novel 'Midnight's Children' is:
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Correct answer: (A) Salman Rushdie
If the mean of the following data is 61, then the value of X is:
xᵢ: 55, 60, 70, 95
fᵢ: 48, X, 31, 23
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Correct answer: (B) 773
The sum of 8 numbers is 336. Find their average number.
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Correct answer: (A) 42
Two pipes can fill a tank in 34 hours and 94 hours, respectively. The time (in hours) required to fill the tank when both pipes are opened simultaneously is:
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Correct answer: (C) 799/32
If the mean proportional of P and 100 is 50, then find the value of P.
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Correct answer: (A) 25
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.