The number 343264 is divisible by:
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Correct answer: (B) 32
RRB JE · Topic-wise previous year questions
Mathematics Previous Year Questions (page 11)
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
Which of the following arrangements produces a nearly uniform magnetic field in the
central region of a circular current-carrying system under steady conditions?
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Correct answer: (B) Using multiple closely wound turns of identical radius with constant current
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 7$86 +5429@ *
CODE
B C R T H U L P A Q V N JM
Conditions –
(i) If the first element is a symbol and the last a number, the codes for these two (the
first and
the last elements) are to be interchanged.
(ii) If the first element is an odd number and the last an even number, the first and last
elements are to be coded as ©
(iii) If both second and third elements are perfect squares, the third element is to be
coded as
the code for the second element.
7 & * 8 4
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Correct answer: (C) © H M R ©
Rupesh has borrowed an amount of ₹4,40,000 from a bank to start a business. How
much simple interest (in ₹) will he pay at a rate of 7% per annum after 3 years?
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Correct answer: (B) 92400
A student drags a suitcase on a flat airport floor. If the force applied and the distance
moved both double, how does the work done change?
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Correct answer: (B) Work done becomes four times greater.
The ratio of fare of a person between Auto and Bus is 2 : 3.5 and the ratio of number of
passengers travelled, on a particular day, by Auto and Bus is 4 : 7. By what fraction the
total fare collected by Auto on that particular day is less than the total fare collected by
Bus?
- A
- B
- C
- D
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Correct answer: (A)
This question is based on the five, three-digit numbers given below.
(Left) 694 874 742 459 648 (Right)
(Example- 697 – First digit = 6, second digit = 9 and third digit = 7)
What will be the resultant if second digit of the highest number is added to the third
digit of lowest number?
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Correct answer: (A) 16
In the context of uniform circular motion, which of the following examples from
everyday life best illustrates this concept?
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Correct answer: (A) A satellite revolving around the Earth at a fixed speed in a circular orbit
If two cars start at the same point and move along a straight road, Car X at a constant
speed of 40 km/h and Car Y at a constant speed of 60 km/h, which statement correctly
compares their motions after 2 hours?
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Correct answer: (B) Car Y will be 40 km ahead of Car X after 2 hours.
One root of the quadratic equation 2x²+(k+3)x+2k=0 is reciprocal of the other. Find the
roots.
- A
- B1 and 1
- C-1 and -1
- D-1 and 1
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Correct answer: (C) -1 and -1
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Correct answer: (B) 125
A 200 m long train crosses a man walking at a speed of 6.6 km/h in the opposite
direction in 15 seconds. What is the speed (in km/h) of the train?
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Correct answer: (B) 41.4
Which calculation correctly gives the molecular mass of nitric acid (HNO₃)?
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Correct answer: (A) 1 + 14 + 48
In covering a distance of 130 km, Amit takes 4 hours more than Vinay. If Amit doubles
his speed, then he would take 9 hour less than Vinay. Amit's original speed is:
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Correct answer: (C) 5 km/h
Let C be a circle with centre O, and R be an external point to C. Let RP and RQ be two
tangents to circle C with P and Q being the points of tangency, respectively. If ∠PRQ =
60°, then find ∠POQ.
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Correct answer: (A) 120°
If at the same rate of interest, in 2 years, the simple interest is ₹48 and compound
interest, compounded annually, is ₹54, then what is the principal (in ₹)?
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Correct answer: (C) 96
What is the mass by mass percentage of salt in a solution prepared by dissolving 10 g
of salt in 90 g of water?
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Correct answer: (D) 10%
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+
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Correct answer: (A) SWRJ
A man bought two types of sharpeners, one at ₹18 for 9 sharpeners and the other at ₹8
per sharpener. He purchased an equal number of each type and sold all the sharpeners
at ₹8 per piece. Find his percentage profit.
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Correct answer: (C) 60%
A cubical gift box has each side measuring 12.4 cm. It is to be wrapped all over with a
gift paper. Find the area to be wrapped.
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Correct answer: (A) 922.56 cm2
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.
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Correct answer: (C) 2.25%
If x is inversely proportional to y, and y = 7 when x = 16, find the value of x, when y = 2.
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Correct answer: (C) 56
The product of two consecutive natural numbers is 12. The greater of the two numbers
is:
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Correct answer: (B) 4
A tap can fill a cistern in 27 hours, while another tap can empty the full cistern in 36
hours. If the cistern is initially empty and both taps are opened together, find the time
(in hours) required to fill one-fourth of the cistern.
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Correct answer: (A) 27
An object of mass 3 kg initially at rest is subjected to a constant force of 9 N for 2
seconds. What will be its final velocity?
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Correct answer: (D) 6 m/s
A shopkeeper bought six identical mobile phones for ₹72,000. He sold two of these
mobile phones for ₹42,000. Find his gain percentage.
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Correct answer: (C) 75%
Which of the following bodies is described as the "real executive" in the Indian political
system?
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Correct answer: (D) Prime Minister of India
If + means - , - means x , x means ÷ , ÷ means +, then what will come in place of the
question mark (?) in the following equation?
53+28÷72×8-3=?
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Correct answer: (C) 52
Find the mean proportional of 144 and 9.
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Correct answer: (D) 36
Simplify: 23 - [3 - {9 - (4 + 5)}]
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Correct answer: (A) 20
The base and the corresponding height of a parallelogram are 93 cm and 29 cm,
respectively. The area of the parallelogram (in cm²) is:
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Correct answer: (B) 2697
Simplify the following.
112 ÷ [16 ÷ 8 × {18 + 12 − (3 + 10 − (4 + 7))}]
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Correct answer: (D) 2
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Correct answer: (C) 7
Mahesh has borrowed an amount of ₹4,40,000 from a bank to start a business. How
much simple interest (in ₹) will he pay at a rate of 6% per annum after 4 years?
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Correct answer: (B) 1,05,600
X people were given a contract for doing a piece of work in 32 days. 8 people did not
turn up to work due to sickness, and the rest of the people completed the work in 40
days. What is the value of X?
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Correct answer: (C) 40
What is the constitutional consequence if the Lok Sabha passes a no-confidence
motion against the ruling government?
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Correct answer: (D) The Council of Ministers is obligated to step down
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.
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Correct answer: (D) 110%
Which enzyme initiates carbohydrate digestion in the human mouth?
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Correct answer: (A) Salivary amylase present in saliva
Ajay can row at 4.5 km/h in still water. It takes him twice the time to row up as it takes
for him to row down the same distance. Find the speed of the stream (in km/h).
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Correct answer: (C) 1.5
The term 'Ragam-Tanam-Pallavi' is associated with which style of Indian music?
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Correct answer: (D) Carnatic Music
100 apples were bought at ₹1,240 per hundred and were sold at a profit of ₹935. Find the
selling price (in ₹) per dozen of apples.
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Correct answer: (D) 261
What is the remainder when 3⁹³⁹ is divided by 8?
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Correct answer: (B) 3
A physicist uses a convex lens to focus sunlight onto a piece of paper and notices the
smallest, brightest spot forms at a certain distance from the lens. Which property of the
lens does this experiment help to determine?
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Correct answer: (D) The experiment helps to determine the focal length of the lens.
From the top of a cliff the angle of depression of a point on the ground 240 feet away
from the bottom of the cliff is 30°. Find the height of the cliff (in feet, rounded off to the
nearest integer).
(Use √3 = 1.732)
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Correct answer: (B) 139
The LCM of 2³ × 6² × 11, 2² × 11² × 17 and 6³ × 11² × 17² is:
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Correct answer: (B) 25 × 33 × 112 × 172
A shopkeeper marks an article at ₹x and offers a discount of 50% on it. He sells it for
₹287 after charging VAT of 64% on the discounted price. What is the value of x?
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Correct answer: (D) 350
A cricket ball of mass 0.15 kg is thrown horizontally at 30 m/s from the top of a building.
What is the ball's kinetic energy as it leaves the hand?
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Correct answer: (C) 67.5 J
Girish scored 459 marks in an examination and was 81 marks short of 20% of the
maximum marks. In the same examination, his friend scored 756 marks. What is the
percentage of marks scored by his friend?
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Correct answer: (B) 28%
The difference between simple interest and compound interest, compounded annually,
on a certain sum of money for 2 years at 11% per annum is ₹371. Find the sum. [Give
your answer rounded off to the nearest integer.]
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Correct answer: (D) ₹30,661
If a material has an absolute refractive index of 1.7, what does this imply about the
speed of light in that material compared to vacuum?
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Correct answer: (D) Light travels 1.7 times slower in the material than in vacuum.
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.