RRB NTPC SAMPLE PAPER - ARITHMETIC - 176

RRB NTPC SAMPLE PAPER - ARITHMETIC - 176

1. If a : b = c : d = e : f = 1 : 2, then (pa + qc + re) : (pb + qd + rf) is equal to

(a) p : (q + r)
(b) (p + q) : r
(c) 2 : 3
(d) 1 : 2

2. If x : y = 3 : 1, then x3 – y3 : x3 + y3 = ?

(a) 13 : 14
(b) 14 : 13
(c) 10 : 11
(d) 11 : 10

3. 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

4. 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

5. 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

Railway Recruitment Board (RRB) NTPC Exams Study Kit

Answer:

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