RRB NTPC 2021-01-02-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-01-02-2021-1 RRB Questions

11.
A deposited ₹8,000 in a bank at 8% per annum simple interest. B deposited ₹6,000 at 10% compound interest per annum. After 3 years the difference between their interest will be:
A.
₹68
B.
₹78
C.
₹66
D.
₹88
ANSWER :
C. ₹66
12.
The District and Sessions Judge works directly under the control of the:
A.
governor of the state
B.
district collector
C.
high court of the state
D.
law minister of the state
ANSWER :
C. high court of the state
13.

There is a regular hexagon of side 5 cm. Find its area.

A.

\(\frac{50\sqrt{3}}{3}\) cm²

B.

\(\frac{75\sqrt{3}}{2}\) cm²

C.

36\(\sqrt{3}\) cm²

D.

25\(\sqrt{3}\)cm²

ANSWER :

B. \(\frac{75\sqrt{3}}{2}\) cm²

14.
Two numbers are in the ratio of 11 : 19. If each one is subtracted by 7, then the ratio of the new numbers becomes 5 : 9. Find the absolute difference between the actual numbers.
A.
34
B.
56
C.
78
D.
45
ANSWER :
B. 56
15.
Two-fifth of seven-seventeenth of three-fifth of a number is 84. Find 40% of that number.
A.
340
B.
850
C.
570
D.
280
ANSWER :
A. 340
16.
The points A (1, 2), B (3, 4) and C (4, 1) are the vertices of a triangle which is:
A.
scalene
B.
equilateral
C.
isosceles
D.
right-angled
ANSWER :
C. isosceles
17.
The total measure of angles in a triangle is:
A.
180°
B.
270°
C.
90°
D.
360°
ANSWER :
A. 180°
18.
A chord of length 24 cm is at a distance of 5 cm from the centre of a circle. The radius of the circle is _____ cm.
A.
13
B.
12
C.
14
D.
10
ANSWER :
A. 13
19.
Six friends, A, B, C, D, E and F, sitting around a hexagonal table, each at one corner, are facing the centre of the table. A is second to the left of F. B is the neighbour of C and D. E is second to the left of D. Who is the third person sitting to the left of B?
A.
E
B.
A
C.
C
D.
F
ANSWER :
A. E
20.
A merchant sold his goods for ₹171 at a profit percent equal to cost price. What was the cost price (in ₹)?
A.
98
B.
70
C.
78
D.
90
ANSWER :
D. 90