RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 2776
Arithmetic
Seven friends, E, F, G, H, I, J and Q, are sitting in a row facing north. Only three people sit to the left of Q. Only H sits to the right of E. Only three people sit between E and J. I sits at some place to the left of F but at some place to the right of G. How many people sit between G and F?
A
TwoB
ThreeC
FourD
OneQuestion 2777
Arithmetic
The simplified value of $285 - 6 \times (23 + 19) + 83$ is:
A
110B
106C
107D
116Question 2778
Arithmetic
In November 2024, which Indian state conducted an Olympic-style school sports event with participation from Gulf-based Indian schools?
A
Tamil NaduB
DelhiC
MaharashtraD
KeralaQuestion 2779
Arithmetic
What is one of the key advantages of the parliamentary system in ensuring smooth governance?
A
The executive has absolute power over the legislature.B
The judiciary controls both the legislature and the executive.C
The Prime Minister can dissolve the legislature at will.D
It ensures harmony and cooperation between the legislature and the executive.Question 2780
Arithmetic
Find the greatest number by which when the numbers 247 and 189 are divided, it leaves remainders 3 and 6, respectively.
A
62B
63C
61D
64Question 2781
Arithmetic
Two taps can fill a cistern in 3 hours and 36 hours, respectively. A third tap can empty it in 4 hours. How long (in hours) will it take to fill two-third of the empty cistern, if all of them are opened together?
A
24B
18C
6D
12Question 2782
Arithmetic
MJGT is related to QNKX in a certain way based on the English alphabetical order. In the same way, CZWJ is related to GDAN. To which of the following options is OLIV related, following the same logic?
A
SMPZB
SPMZC
SPZMD
SMZPQuestion 2783
Arithmetic
Seven boxes, A, B, C, D, E, F and Y, are kept one over the other but not necessarily in the same order. Only D is kept above F. Only three boxes are kept between D and A. Only B is kept below E. Y is not kept immediately above A. How many boxes are kept between C and B?
A
FourB
ThreeC
TwoD
OneQuestion 2784
Arithmetic
Which of the following pairs of reform organisations and their founders is correctly matched?
A
Brahmo Samaj – Dayanand SaraswatiB
Arya Samaj - Raja Ram Mohan RoyC
Satya Shodhak Samaj - Jyotiba PhuleD
Bahujan Samaj - BR AmbedkarQuestion 2785
Arithmetic
In November 2024, who was named Indian Film Personality of the Year at the International Film Festival of India (IFFI)?
A
Vikrant MasseyB
Manoj BajpayeeC
Nawazuddin SiddiquiD
Ayushmann KhurranaQuestion 2786
Arithmetic
Govind invested some money in a bank at 4% per annum rate of interest. What would be the corresponding simple interest (in ₹) if after 2 years, Govind got ₹280.5 as compound interest, considering annual compounding?
A
275B
290C
270D
285Question 2787
Arithmetic
If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 4123957, what will be the difference between the greatest and smallest digits in the new number thus formed?
A
6B
4C
2D
8Question 2788
Arithmetic
The present cost of a hospital is ₹1,82,590. After a year, its cost increased to ₹1,95,382. The percentage increase (rounded off to the nearest integer) in the cost of the hospital is:
A
5%B
16%C
3%D
7%Question 2789
Arithmetic
When was the designation of the Governor General in India promoted as a Viceroy or Crown's representative?
A
Year 1935B
Year 1919C
Year 1833D
Year 1858Question 2790
Arithmetic
What does the horizontal row in the periodic table represent?
A
GroupsB
ColumnsC
PeriodsD
BlocksQuestion 2791
Arithmetic
In the context of computer hardware components, what is the primary function of ROM?
A
It physically supports all internal hardware modules.B
It holds essential firmware required for booting the system.C
It stores temporary data used during system processing.D
It executes programs and handles arithmetic operations.Question 2792
Arithmetic
Where is the audit report of an apex co-operative society required to be presented?
A
District OfficeB
State LegislatureC
High CourtD
State SecretariatQuestion 2793
Arithmetic
What is the mode of the data given below? [Give your answer correct to 2 decimal places.] Age in years 15-25 25-35 35-45 45-55 55-65 65-75 75-85 No. of patients 14 32 39 38 10 36 22
A
40.86B
60.47C
43.75D
36.08Question 2794
Arithmetic
If 48, 96, 20, and y are in proportion, then the value of y is:
A
38B
37C
34D
40Question 2795
Arithmetic
Which of the following was the theme of National Science Day 2021, celebrated on the 28th of February?
A
Fostering Scientific Excellence through Youth-Driven Research and Innovation in IndiaB
Building a Developed Nation through Scientific Thinking and Modern TechnologyC
Empowering Indian Youth for Global Leadership in Science and Innovation for Viksit BharatD
Advancing Scientific Vision through Innovation and Collaborative Growth in BharatQuestion 2796
Arithmetic
The Mauryan period saw the development of which script for inscriptions?
A
PaliB
BrahmiC
KharosthiD
GranthaQuestion 2797
Arithmetic
The Indus Valley Civilization flourished around:
A
2500-1800 BCEB
5000-4000 BCEC
1000-500 BCED
900-200 BCEQuestion 2798
Arithmetic
In finding the HCF of two numbers by division method, the quotients are 1, 5, and 8, respectively, and the last divisor is 57. What is the LCM of the two numbers?
A
114509B
114517C
114511D
114513Question 2799
Arithmetic
Which country is developing the 'Gelephu Mindfulness City' to promote economic growth, wellness, and sustainability?
A
CambodiaB
BhutanC
NepalD
Sri LankaQuestion 2800
Arithmetic
What should come in place of the question mark (?) in the given series? 356, 333, 300, ?, 204, 141
A
237B
247C
257D
227