RRB NTPC SAMPLE PAPER - ARITHMETIC - 40

1. Find the value of k, if the distance between the points (1, 4), (k, 1) is 5.

(a) 3 or 5
(b) –3 or 5
(c) 3 or –5
(d) None of these

2. The points whose coordinates are (2, 2), (6, 3), (4, 11) forms

(a) a isosceles triangle
(b) a right angle
(c) scalene triangle
(d) an equilateral

3. The following points A (–1, 0), B (3, 1), C (2, 2) and D (–2, 1) taken in order form a

(a) rectangle
(b) parallelogram
(c) square
(d) None of these

4. Which of the following expression is a polynomial?

(a) X²+2/X+3

(b) X²-2X+3

(c) 1/X²-2X+3

(d) X²-2√X-2

5. Which of the following expression is a polynomial in one variable?

(a) 3x2 –2y + 3
(b) –x2 + 6x – 5 = 0
(c) x2 + y2 = –3
(d) 2x2 – 2y–1 = 0

Railway Recruitment Board (RRB) NTPC Exams Study Kit

Answer:

1. (b) 2. (b) 3. (b) 4. (b) 5. (b)