RRB-NTPC 2021 Mathematics
Practice subject-wise previous year questions
Question 2976
Arithmetic
4 chairs and 4 tables cost ₹7,000 and 6 chairs and 5 tables cost ₹8,800. What is the cost of 16 chairs and 2 tables?
A
₹4,197B
₹4,200C
₹4,198D
₹4,195Question 2977
Arithmetic
Akash sold an article at a loss of 17%. If he had bought the item at 5% less and had sold it for ₹310 more, then he would have gained 20%. Find the cost price (in ₹) of the article.
A
674B
785C
1,000D
1,215Question 2978
Arithmetic
Which option correctly explains the fundamental difference between input and output devices in a computer system?
A
Input devices change user inputs into digital format, while output devices permanently save system data.B
Input devices directly interact with the CPU, while output devices work independently without CPU involvement.C
Input devices run pre-loaded instructions from memory, whereas output devices collect environmental data.D
Input devices enable users to send data into the system, while output devices communicate processed information back to the user.Question 2979
Arithmetic
Which type of legislative bills must be introduced in the Lok Sabha only after obtaining the prior approval of the President of India?
A
Ordinary BillsB
Public BillsC
Private BillsD
Money BillsQuestion 2980
Arithmetic
Who was elected as the Chair of the Asian Productivity Organization (APO) for the 2021-26 term during the 67th GBM?
A
Agung Nur RohmadB
Amardeep Singh BhatiaC
Dr. Indra Pradana SingawinataD
Jone Maritino NemaniQuestion 2981
Arithmetic
Rati travels from City A to City B. If Rati drives her car at 1/3 of her normal speed, then she reaches City B 50 minutes late. Find the time (in minutes) that Rati would take to travel from City A to City B if she drove at her normal speed.
A
25B
34C
35D
26Question 2982
Arithmetic
In one hour, a boat goes 46 km/hr in the direction of the stream and 36 km/hr against the direction of the stream. What will be the speed of the current?
A
5 km/hrB
4 km/hrC
11 km/hrD
2 km/hrQuestion 2983
Arithmetic
India's Green Revolution began with experimental programmes. What was the first such initiative called?
A
Intensive Agricultural District ProgrammeB
National Seed PlanC
Rural Employment ProgrammeD
Operation GreenQuestion 2984
Arithmetic
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. Note: If none of the conditions apply, then codes for the respective number/symbol are to be followed directly as given in the table. Number/ symbol 8 6 * % 9 & 3 + @ 5 $ 7 4 Code W C E J F A D Q G P R B U Conditions: (I) 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. (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 the third element is a perfect cube, the second element is to be coded as the code for the third element. What will %987 be coded as?
A
JFWBB
JWFBC
JWWBD
BFWJQuestion 2985
Arithmetic
Vinay starts from Point A and drives 3 km towards the North. He then takes a right turn, drives 2 km, turns left and drives 3 km. He then takes a left turn and drives 6 km. He takes a final left turn, drives 6 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90 degrees turns only unless specified)
A
6 km to the EastB
4 km to the WestC
4 km to the EastD
5 km to the EastQuestion 2986
Arithmetic
What is the mode of the following data? 49, 54, 54, 43, 52, 49, 51, 46, 53, 43, 53, 49, 44, 45, 46, 44, 40, 50, 52, 49
A
49B
43C
54D
52Question 2987
Arithmetic
Which of the following can be settled in a Lok Adalat?
A
Public interest litigationB
Constitutional mattersC
Compoundable offencesD
Murder casesQuestion 2988
Arithmetic
Which of the following positions is NOT found in every Gram Panchayat in India?
A
Elected President (Sarpanch) of the PanchayatB
Panchayat SecretaryC
Elected Treasurer of the PanchayatD
Vice President (Upsarpanch) of the PanchayatQuestion 2989
Arithmetic
What should come in place of the question mark (?) in the given series? 4 10 19 34 58 ?
A
94B
72C
74D
89Question 2990
Arithmetic
Which country will host the 2021 FIFA Club World Cup, featuring the top football clubs from around the world?
A
SpainB
QatarC
United StatesD
Saudi ArabiaQuestion 2991
Arithmetic
Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (Note: All numbers are single digit numbers only.) (Left) 3 3 & 7 * € 2 6 8 £ % 5 6 £ ©1 6 & % 8 # # (Right) How many such numbers are there, each of which is immediately preceded by a number and also immediately followed by a symbol?
A
3B
4C
6D
5Question 2992
Arithmetic
The mean proportional between 4 + 2√3 and 16 – 8√3 is:
A
4B
8C
9D
14Question 2993
Arithmetic
Which force arises when a body is immersed in a fluid and displaces the fluid?
A
Normal reactionB
Buoyant forceC
Spring forceD
TensionQuestion 2994
Arithmetic
In 2024, which state was selected for the establishment of India's first commercial semiconductor fabrication plant under the India Semiconductor Mission?
A
Tamil NaduB
Uttar PradeshC
GujaratD
MaharashtraQuestion 2995
Arithmetic
The government of India decided that Medium-Term and Long-Term Government Deposit (MLTGD) components of Gold Monetisation Scheme (GMS) shall be discontinued from:
A
26 December 2024B
26 February 2023C
26 March 2021D
26 January 2022Question 2996
Arithmetic
What major future-focused initiative was discussed during the 67th GBM of the Asian Productivity Organisation APO?
A
Green Productivity 2.0 EcosystemB
Smart Cities 2030C
Digital Governance NetworkD
Asia-Pacific Free Trade AgreementQuestion 2997
Arithmetic
Amita, Babita, Geeta, Kavita, Meeta, Sarita, Vinita are sitting in a straight line, facing north. Geeta sits third to the right of Kavita. Sarita sits third to the left of Amita, who is third to the left of Meeta. Neither Sarita nor Babita sit immediately next to Kavita. Three of the following four are alike in a certain way based on the given arrangement and thus form a group. Which of the following does NOT belong to that group?
A
Amita and BabitaB
Vinita and AmitaC
Babita and MeetaD
Sarita and KavitaQuestion 2998
Arithmetic
A retailer allows a 10% discount on the marked price. What price (in ₹) must be marked on an item whose cost price is ₹626 to make a profit of 35%?
A
939B
938C
937D
942Question 2999
Arithmetic
In Microsoft PowerPoint, which view is best suited for reorganising slides and getting an overview of the entire presentation structure?
A
Slide Sorter ViewB
Normal ViewC
Slide Show ViewD
Reading ViewQuestion 3000
Arithmetic
Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (Note: All numbers are single digit numbers only.) (Left) 3 © 3 # 1 & & 5 £ 9 3 4 * & 2 2 % 2 2 7 © @ (Right) How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by a symbol?
A
4B
5C
2D
3