RRB-NTPC 2016 Mathematics

Practice subject-wise previous year questions

Question 1026
Arithmetic

What action did the Supreme Court take regarding mining near national parks and wildlife sanctuaries on November 13, 2025?

A
Reduced protection area to 0.5 km
B
Banned mining activities within one km
C
Permitted mining with restrictions
D
Allowed mining activities anywhere
Question 1027
Arithmetic

In a certain code language, 'LITE' is coded as '1527' and 'EDIT' is coded as '5124'. What is the code for 'D' in the given code language?

A
4
B
5
C
1
D
2
Question 1028
Arithmetic

The 68th annual Grammy Awards conducted on 1 February 2016, in Los Angeles, honoured which of the following performers as Best New Artist?

A
Leon Thomas
B
Addison Rae
C
Lola Young
D
Olivia Dean
Question 1029
Arithmetic

A tank is filled by three pipes, P, Q and R, with uniform flow. The first two pipes P and Q, operating simultaneously, fill the tank in the same amount of time that it takes for the tank to be filled by pipe R alone. Pipe Q fills the tank 15 hours faster than the first pipe and 12 hours slower than pipe R. What is the time required by pipe P to fill the tank?

A
32 hours
B
45 hours
C
25 hours
D
47 hours
Question 1030
Arithmetic

If the Government of India revokes the citizenship of an individual for acting against the interests of the country, which constitutional or statutory provision empowers it to do so?

A
Section 6A of the Citizenship Act, 1955
B
Section 10 of the Citizenship Act, 1955
C
Article 5 of the Constitution
D
Article 11 of the Constitution
Question 1031
Arithmetic

What is the ratio between fourth proportional of 10, 80, 30 and fourth proportional of 7, 28, 19?

A
29:26
B
30:19
C
10:70
D
60:19
Question 1032
Arithmetic

Which provision in Part II of the Constitution defines one basis for citizenship at the commencement, specifically that the person's either parent was born in India?

A
Article 8
B
Article 9
C
Article 6
D
Article 5
Question 1033
Arithmetic

What did the Tax Reforms Committee recommend for Wealth Tax in 1991?

A
rationalisation of property tax
B
abolition of wealth tax
C
restructuring of estate duty
D
removal of gift tax
Question 1034
Arithmetic

Unlike humans, a computer does not feel tired or bored while repeating the same task all day. This shows which characteristic?

A
Diligence
B
Intelligence
C
Versatility
D
Speed
Question 1035
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: No elephant is a horse. No horse is a donkey. No horse is a turtle. Conclusions: (I) No elephant is a donkey. (II) Some turtles are donkeys.

A
Neither conclusion (I) nor (II) follows.
B
Only conclusion (I) follows.
C
Only conclusion (II) follows.
D
Both conclusions (I) and (II) follow.
Question 1036
Arithmetic

FIBA is related to EJAB in a certain way based on the English alphabetical order. In the same way, ZELU is related to YFKV. To which of the following is COIS related, following the same logic?

A
BQJV
B
BQGS
C
BOMS
D
BPHT
Question 1037
Arithmetic

D, E, F, G, S, T and U are sitting around a circular table facing the centre. T sits to the immediate left of S. U sits to the immediate left of D. D sits second to the left of G. E sits third to the left of S. Who sits fourth to the right of F?

A
S
B
G
C
D
D
T
Question 1038
Arithmetic

Amir Khusrau, the famous historian, said about a particular language that 'common people do not know it, only the Brahmanas do'. Which of the following languages did the historian talk about?

A
Palli
B
Sanskrit
C
Urdu
D
Hindu
Question 1039
Arithmetic

What is the key difference between extensive and intensive farming systems?

A
Irrigation used
B
Size of seed
C
Machinery type
D
Production per land unit
Question 1040
Arithmetic

Which significant milestone did the Ministry of Environment, Forest and Climate Change announce on World Environment Day 2025 regarding pollution?

A
Ban on all single-use plastics nationwide
B
Elimination of non-attainment cities
C
Closure of coal plants
D
Launch of “One Nation, One Mission: End Plastic Pollution”
Question 1041
Arithmetic

Which layer of the Earth plays the primary role in generating the planet's magnetic field?

A
Mantle
B
Outer core
C
Crust
D
Inner core
Question 1042
Arithmetic

The population of a village was 2,90,000. It increased by 15% in the first year and increased by 25% in the second year. Its population after two years is _______.

A
3,33,500
B
3,62,500
C
4,16,875
D
4,06,000
Question 1043
Arithmetic

The first E-Lok Adalat was held in which year in India?

A
2016
B
2020
C
2012
D
2014
Question 1044
Arithmetic

P, Q, R, S, E and F live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, number 2 and so on till the topmost floor is numbered 6. E lives on floor number 4. Only two people live between E and R. Only P lives between E and Q. S lives immediately below E. Who lives on floor number 2?

A
S
B
Q
C
R
D
F
Question 1045
Arithmetic

If '+' means '−', '−' means '×', '×' means '÷', '÷' means '+', then what will come in place of the question mark (?) in the following equation? 57 − 7 ÷ 119 + 288 × 2 = ?

A
345
B
311
C
329
D
374
Question 1046
Arithmetic

20% of a number is more than 20% of 620 by 170. The number is:

A
1470
B
1520
C
1320
D
1570
Question 1047
Arithmetic

Each of P, Q, R, S, T, U and V has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. P has the exam on Wednesday. Only three people have exams after R. S has the exam after Q but before P. U has the exam before V but not on Friday. How many people have exams between T and Q?

A
Two
B
Three
C
One
D
Four
Question 1048
Arithmetic

Each of the digits in the number 4568923 is arranged in ascending order from left to right. The position of how many digits will remain unchanged as compared to that in the original number?

A
Two
B
One
C
Three
D
None
Question 1049
Arithmetic

The mean of 80 numbers was found to be 49. If at the time of calculation, two numbers were incorrectly taken as 69 and 74 instead of 92 and 83, then the correct mean is _____.

A
48.5
B
49
C
49.4
D
46.2
Question 1050
Arithmetic

Which AI-powered diagnostic model, unveiled by Indian scientists in 2025, analyses cancer at the molecular level to improve classification and treatment outcomes?

A
OncoMark AI-powered cancer diagnostic model
B
GeneMap advanced molecular oncology platform
C
BioScan AI-based tumour classification model
D
TumourTrack intelligent cancer analysis system