RRB NTPC SAMPLE PAPER - ARITHMETIC - 228

RRB NTPC SAMPLE PAPER - ARITHMETIC - 228

1. If 10% of m is the same as 20% of n, then m : n is equal to

(a) 2 : 1
(b) 1 : 2
(c) 1 : 10
(d) 1 :20

2. How many sides does a regular polygon have whose interior and exterior angles are in the ratio 2 : 1?

(a) 3
(b) 5
(c) 6
(d) 12

3. The area (in sq.cm.) of the largest circle that can be drawn inside a square of side 28 cm, is

(a) 17248
(b) 784
(c) 8624
(d) 616

4. The circumference of the base of a circular cylinder is 67π cm. The height of the cylinder Is equal to the diameter of the base. How many litres of water can it hold?

(a) 54 π cc
(b) 36 π cc
(c) 0.054 π cc
(d) 0.54 π cc

5. If the circumference of a circle increases from 4n to 8π, what change occurs in its area?

(a) It doubles
(b) It triples
(c) It quadruples
(d) It is halved

Railway Recruitment Board (RRB) NTPC Exams Study Kit

Answer:

1. (a) 2. (c) 3. (d) 4. (a) 5. (c)