RRB-NTPC 2021 Mathematics

Practice subject-wise previous year questions

Question 2476
Arithmetic

According to CRISIL's Infrastructure Yearbook 2023, what is the total projected infrastructure spending in India over the next seven years?

A
₹160 lakh crore
B
₹143 lakh crore
C
₹110 lakh crore
D
₹95 lakh crore
Question 2477
Arithmetic

If  a : b :: b : c; c = 25a and b = 20, find the positive value of c.

A
99
B
98
C
100
D
101
Question 2478
Arithmetic

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements. Statements: All sparrows are parrots. All parrots are macau. Some sparrows are dove. Conclusions: (I) Some sparrows are macau. (II) Some doves are parrots.

A
Only conclusion (I) follows
B
Both conclusions (I) and (II) follow
C
Only conclusion (II) follows
D
Neither conclusion (I) nor conclusion (II) follows
Question 2479
Arithmetic

In January 2021, National Tourism Day was celebrated with which of the following themes?

A
Tourism for Rural Revival
B
Tourism for Inclusive Growth
C
Tourism for Equal Progress
D
Tourism for Sustainable Future
Question 2480
Arithmetic

Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of :: ? #: RWS :: INJ : %

A
# = NGV, % = FLP
B
# = UZV, % = FKG
C
# = PIV, % = MJU
D
# = CDR, % = KJI
Question 2481
Arithmetic

What motion is responsible for the generation of waves in a string?

A
Periodic oscillatory motion
B
Rectilinear motion
C
Random motion
D
Non-accelerating translational motion
Question 2482
Arithmetic

Which of the following is a National Park in Rajasthan?

A
Sundarbans National Park
B
Jim Corbett National Park
C
Kaziranga National Park
D
Ranthambore National Park
Question 2483
Arithmetic

On simple interest, a certain sum of money amounts to ₹1,250 in 2 years and to ₹2,000 in 4 years. Find the rate of interest per annum.

A
70%
B
75%
C
85%
D
80%
Question 2484
Arithmetic

Who among the following has the authority to specify an urban area as a 'large urban area' or a 'small urban area' or a 'transitional area' in a state?

A
President of India
B
Chief Minister of the State
C
Chief Justice of the State's High Court
D
Governor of the State
Question 2485
Arithmetic

According to INEP Emissions Gap Report 2024, what annual reduction in emissions is required until 2035 to limit global warming to 1.5°C?

A
10%
B
7.5%
C
3.5%
D
5.5%
Question 2486
Arithmetic

How do we customise bullets in MS Word?

A
Insert $\rightarrow$ Picture
B
Layout $\rightarrow$ Margins
C
Home $\rightarrow$ Bullets $\rightarrow$ Define New Bullet
D
View $\rightarrow$ Zoom
Question 2487
Arithmetic

Which international entity has partnered with India to launch joint research initiatives aimed at tackling marine plastic litter and developing waste-to-hydrogen technologies?

A
G7 Environment Council
B
World Economic Forum (WEF)
C
United Nations Industrial Development Organization (UNIDO)
D
European Union (EU)
Question 2488
Arithmetic

Where did Max Verstappen clinch his fourth Formula 1 World Championship?

A
Austin
B
Indianapolis
C
Miami
D
Las Vegas
Question 2489
Arithmetic

For a regular polygon, the sum of the interior angles is 50% more than the sum of its exterior angles. Each interior angle of the polygon measures x°. What is the value of x?

A
88
B
96
C
112
D
108
Question 2490
Arithmetic

Dhiraj starts from Point Y and drives 22 km towards the east. He then takes a right turn, drives 33 km, turns left and drives 25 km. He then takes a left turn and drives 51 km. He takes a left turn, drives 47 km. He then turns left, drives 23 km and stops at Point Z. How far (shortest distance) and towards which direction should he drive in order to reach Point Y again? (All turns are 90-degree turns only unless specified.)

A
5 km towards the north
B
5 km towards the east
C
7 km towards the north
D
7 km towards the south
Question 2491
Arithmetic

A company produces two products A and B with prices of ₹156 and ₹220, respectively. If 55% of the products sold are A and 45% of the products sold are B. Find the weighted average price?

A
₹169.50
B
₹174.60
C
₹184.80
D
₹165.30
Question 2492
Arithmetic

Who was the skipper of the Mumbai Indians team that won the Women's Premier League (WPL) 2021 title?

A
Harmanpreet Kaur
B
Mithali Raj
C
Jhulan Goswami
D
Smriti Mandhana
Question 2493
Arithmetic

Seven boxes, D, E, F, G, S, T and U, are kept one over the other but not necessarily in the same order. Only two boxes are kept below T. Only one box is kept above U. Only one box is kept between U and D. G is kept immediately above S. F is kept at some place below E. How many boxes are kept between E and G?

A
Two
B
One
C
Four
D
Three
Question 2494
Arithmetic

What will come in the place of the question mark (?) in the following equation, if ‘+’ is replaced by ‘−’ and ‘×’ and ‘÷’ are interchanged?   20 ÷ 5 + 8 × 2 + 1 = ?

A
95
B
85
C
80
D
90
Question 2495
Arithmetic

Who among the following has been appointed as 26th Chief Election Commissioner of India in February 2021?

A
Sanjay Malhotra
B
Ashish Naithani
C
Vineet Joshi
D
Gyanesh Kumar
Question 2496
Arithmetic

A sum when invested at the rate of 12.5% simple interest per annum, amounts to ₹7,500 after 2 years. The simple interest (in ₹) for the given time period is:

A
1,500
B
1,600
C
1,700
D
1,400
Question 2497
Arithmetic

Which physiographic feature lies parallel to the Shiwaliks and is about 8-16 km wide?

A
Bhabar
B
Terai
C
Delta
D
Doab
Question 2498
Arithmetic

This question is based on the five, three-digit numbers given below.  (Left) 411 559 916 247 769 (Right)  (Example- 697 – First digit = 6, second digit = 9 and third digit = 7)  (NOTE: All operations to be done from left to right.)What will be the resultant if the first digit of the lowest number is subtracted from the first digit of the highest number?

A
10
B
7
C
8
D
6
Question 2499
Arithmetic

Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of :: ? #: EPV :: RFS: %

A
# = COW, % = SGQ
B
# = DMU, % = SGL
C
# = CNU, % = THV
D
# = DNU, % = SHT
Question 2500
Arithmetic

In a certain code language, 'MICE' is coded as '6398' and 'PEAR' is coded as '3215'. What is the code for 'E' in the given code language?

A
2
B
5
C
3
D
8