RRB NTPC Mathematics Quiz : 19th November

Q1. ABCD is a parallelogram. Co-ordinates of A, B and C are (5,0), (-2,3) and (-1,4) respectively. What will be the equation of line AD?
(a) y = 2x – 5
(b) y = x + 5
(c) y = 2x + 5
(d) y = x – 5
Q2. At what rate of compound interest per annum will a sum of Rs 30000 become Rs 42483 in 2 years?
(a) 23 percent
(b) 19 percent
(c) 16 percent
(d) 13 percent
Q3. A bag has Rs 29.4 in the form of 1 rupee, 50 paise and 10 paise coins in the ratio of 7:5:3. What is the number of 50 paise coins?
(a) 9
(b) 18
(c) 15
(d) 21
Q4. Reflection of the point (-3,6) in the x-axis is
(a) (3,6)
(b) (6,-3)
(c) (-3,-6)
(d) (-6,3)
Q5. The Simplified form of (bx3a2z5)*(b5x2a4z6)/(a5b3z9) is
(a) b2x4a6z
(b) b3x2a4z3
(c) b3x5a z2
(d) b3a5z2
Q6. Two students appeared for an examination. One of them secured 39 marks more than the other and his marks were 52% of the sum of their marks. The marks obtained by them are
(a) 468 and 507
(b) 568 and 507
(c) 538 and 575
(d) 471 and 510
Q7. What least number must be added to 5632, so that the sum obtained is completely divisible by 31?
(a) 10
(b) 12
(c) 15
(d) 13
Q8. If a merchant offers a discount of 12% on the list price, then she makes a loss of 12%. What % profit or % loss will she make if she sells at a discount of 6% of the list price?
(a) 12 percent loss
(b) 6 percent loss
(c) 10.25 percent profit
(d) 20 percent profit
Q9. An angle is smaller than its supplementary by 50°. What is the measure of the angle?
(a) 65°
(b) 15°
(c) 70°
(d) 35°
Q10. A square is inscribed in a circle. If the side of the square is 21 cm, what is the area (in sq.cm) of the circle?
(a) 616 cm²
(b) 154 cm²
(c) 693 cm²
(d) 729 cm²