RRB NTPC 2021-17-02-2021-2 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-17-02-2021-2 RRB Questions

21.
After offering successive discounts of 15% and 12%, there was still a 10% profit on the sale of the item. What is the ratio of the marked price to the cost price of the item?
A.
2 : 1
B.
25 : 17
C.
90 : 73
D.
110 : 73
ANSWER :
B. 25 : 17
22.

Which of the following is NOT correct with respect to amendments in the Constitution of India?

A.

72nd amendment - to make provisions for setting up Rent Control Tribunals

B.

102nd amendment - to give constitutional status to the National Commission for Backward Classes

C.

61st amendment - to reduce the voting age from 21 to 18 years

D.

101st amendment - to introduce goods and services tax

ANSWER :

A. 72nd amendment - to make provisions for setting up Rent Control Tribunals

23.
Three positive integers, a, b, and c, are such that their average is 28 and a ≤ b ≤ c. If the median is (a + 16), then what is the least possible value of c?
A.
32
B.
35
C.
33
D.
34
ANSWER :
D. 34
24.
Select the number that will come next in the following series.
619, 656, 693, 730, ?
A.
787
B.
767
C.
777
D.
757
ANSWER :
B. 767
25.
Who once remarked, "Nehru is a patriot, while Jinnah is a politician"?
A.
Aurobindo Ghosh
B.
Mohammed Iqbal
C.
Jawaharlal Nehru
D.
Rabindranath Tagore
ANSWER :
B. Mohammed Iqbal
26.
If three numbers are in the ratio of 4 : 3 : 8 and the smallest of these numbers is 42, find the largest of these numbers.
A.
104
B.
96
C.
120
D.
112
ANSWER :
D. 112
27.

If θ = 30°, then what will be the value of sinθcosθ?

A.

\(\frac{3}{8}\)

B.

\(\frac{\sqrt{3}}{6}\)

C.

\(\frac{\sqrt{3}}{2}\)

D.

\(\frac{\sqrt{3}}{4}\)

ANSWER :

D\(\frac{\sqrt{3}}{4}\)

28.
If 28% of a number is 20, then what is the value of 49% of the same number?
A.
35
B.
38.5
C.
42
D.
45.5
ANSWER :
A. 35
29.

If θ is an acute angle and tanθ = \( \frac{48}{55} \), then what is the value of cosecθ?

A.

\( \frac{73}{48} \)

B.

\( \frac{73}{55} \)

C.

\( \frac{55}{48} \)

D.

\( \frac{48}{73} \)

ANSWER :

A. \( \frac{73}{48} \)

30.
Select the pair that is NOT matched correctly (the dam to the river it is built on).
A.
Indira Sagar Dam - Narmada river
B.
Nathpa Jhakri Dam - Jhelum river
C.
Nagarjuna Sagar Dam - Krishna river
D.
Tehri Dam - Bhagirathi river
ANSWER :
B. Nathpa Jhakri Dam - Jhelum river