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 croreB
₹143 lakh croreC
₹110 lakh croreD
₹95 lakh croreQuestion 2477
Arithmetic
If a : b :: b : c; c = 25a and b = 20, find the positive value of c.
A
99B
98C
100D
101Question 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) followsB
Both conclusions (I) and (II) followC
Only conclusion (II) followsD
Neither conclusion (I) nor conclusion (II) followsQuestion 2479
Arithmetic
In January 2021, National Tourism Day was celebrated with which of the following themes?
A
Tourism for Rural RevivalB
Tourism for Inclusive GrowthC
Tourism for Equal ProgressD
Tourism for Sustainable FutureQuestion 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, % = FLPB
# = UZV, % = FKGC
# = PIV, % = MJUD
# = CDR, % = KJIQuestion 2481
Arithmetic
What motion is responsible for the generation of waves in a string?
A
Periodic oscillatory motionB
Rectilinear motionC
Random motionD
Non-accelerating translational motionQuestion 2482
Arithmetic
Which of the following is a National Park in Rajasthan?
A
Sundarbans National ParkB
Jim Corbett National ParkC
Kaziranga National ParkD
Ranthambore National ParkQuestion 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 IndiaB
Chief Minister of the StateC
Chief Justice of the State's High CourtD
Governor of the StateQuestion 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 $\rightarrow$ PictureB
Layout $\rightarrow$ MarginsC
Home $\rightarrow$ Bullets $\rightarrow$ Define New BulletD
View $\rightarrow$ ZoomQuestion 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 CouncilB
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
AustinB
IndianapolisC
MiamiD
Las VegasQuestion 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
88B
96C
112D
108Question 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 northB
5 km towards the eastC
7 km towards the northD
7 km towards the southQuestion 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
₹169.50B
₹174.60C
₹184.80D
₹165.30Question 2492
Arithmetic
Who was the skipper of the Mumbai Indians team that won the Women's Premier League (WPL) 2021 title?
A
Harmanpreet KaurB
Mithali RajC
Jhulan GoswamiD
Smriti MandhanaQuestion 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
TwoB
OneC
FourD
ThreeQuestion 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
95B
85C
80D
90Question 2495
Arithmetic
Who among the following has been appointed as 26th Chief Election Commissioner of India in February 2021?
A
Sanjay MalhotraB
Ashish NaithaniC
Vineet JoshiD
Gyanesh KumarQuestion 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
1,500B
1,600C
1,700D
1,400Question 2497
Arithmetic
Which physiographic feature lies parallel to the Shiwaliks and is about 8-16 km wide?
A
BhabarB
TeraiC
DeltaD
DoabQuestion 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
10B
7C
8D
6Question 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, % = SGQB
# = DMU, % = SGLC
# = CNU, % = THVD
# = DNU, % = SHTQuestion 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
2B
5C
3D
8