In this post we are sharing the questions asked from Quantitative Aptitude Section in RRB NTPC 2019 , on 28 December, 2020 Shift- 1, try to solve all these questions on your own then see the solutions and check your score, this will give you and idea about your preparation level.
1. If x/2+2/y=1 and y/2+2/z=1, then the value of z/2+2/x is:
(a) 2 (b) 1 (c) 0 (d) -1
Correct Answer: (b) 1
2. A rope is divided in to three different parts. The first part is 1/5 of the whole length, the second part is 3/2 of the first. The third part is what fraction of the rope?
(a)2/3 (b)1/3 (c)3/4 (d)1/2
Correct Answer: (d)1/2
3. The adjacent angles of a rhombus are in the ratio of 3: 6. The smallest angle of the rhombus is:
(a) 60 degree (b) 40 degree (c) 120 degree (d) 80 degree
Correct Answer: (a) 60 degree
4. The angles of a triangle are 2x degree, (3x-8) degree and (5x-12) degree The greatest angle of the triangle is:
(a)112 degree (b)88 degree (c) 40 degree (d) 118 degree
Correct Answer: (b)88 degree
5. The greatest number that will divide 155, 260, 315 and leave the remainders 5, 10 and 15 respectively is:
(a) 50 (b) 10 (c) 25 (d) 75
Correct Answer: (a) 50
6. The simple interest on an amount of ₹3400 for 4 years is ₹680. The rate of interest is:
(a) 6% (b) 5% (c) 4% (d) 8%
Correct Answer: (b) 5%
7. A cylinder has a height of 14 cm and the curved surface area is 528 cm2. The volume of the cylinder is:
(a) 1244 cm3 (b) 792 cm3 (c) 1584 cm3 (d) 2538 cm3
Correct Answer: (c) 1584 cm3
8. A train leaves station A towards station B at the speed of 50 km/hr. After half an hour, another train leaves station B towards station A at 150 km/hr. The distance between the stations is 725 km. The distance of the point from station A where the two trains are to meet is:
(a) 168 km (b) 200 km (c) 250 km (d) 150 km
Correct Answer: (b) 200 km
9. What is to be added to 12% of 2400, so that the sum will be equal to 18% of 5400?
Correct Answer:
(a) 972 (b) 684 (c) 952 (d) 288
Correct Answer: (b) 684
10. X and Y together can complete a piece of work in 12 days, Y and Z can do it 18 days and X and Z can complete the same work in 15 days. If X, Y and Z can together complete the work, approximately how many days will be required to complete the work?
(a) 18 (b) 10 (c) 14 (d) 12
Correct Answer: (b) 10
11. The unit digit in 4 *38 *764 * 1256 is:
(a) 4 (b) 5 (c) 6 (d) 8
Correct Answer: (d) 8
12. In a rectangle, the length is twice the breadth and the perimeter of the rectangle is 48 cm. The area of the rectangle is:
(a) 128 cm2 (b) 512 cm2 (c) 144 cm2 (d) 288 cm2
Correct Answer: 28 cm2
13. The value of 5sin14 sec 76+3cot15×cot75 is:
(a) 0 (b) 10 (c) 1 (d) 8
Correct Answer:(b) 10
14. If sinα=3/4 and cosα=5/4 then the value of (1+tanα)/(1-tanα) is:
(a)4 (b) 6 (c) 8 (d) 10
Correct Answer:(a)4
15. The ratio of ladies to gents numbers in a club is 3: 2. Recently, 300 ladies joined the club and the ratio became 5 : 2. The number of lady members now in the club is:
(a) 600 (b) 900 (c) 1200 (d) 750
Correct Answer:(d) 750
16. In order to qualify in an examination, one has secure 50% of the overall marks. In the examination consisting of two papers, a student secured 40% in the first paper of 200 marks. Minimum what percentage of marks should be secured in the second paper of 150 marks in order to qualify in the examination?
(a) 64 % (b) 65% (c) 60% (d) 68%
Correct Answer: (a) 64 %
17. The value of 6/5 of (1/3+2/4)-5/6 of (3/10 +12/20) – 1/6 is:
(a) ¾ b) 1/3 (c)5/6 (d) 1/12
Correct Answer: (d) 1/12
18. The sum of two numbers is 60 and their HCF and LCM are 12 and 72 respectively. The sum of the reciprocal of the two numbers is:
(a) 5/6 (b) 1/5 (c)5/12 (d) 5/72
Correct Answer: (d) 5/72
19. The cost price of an article is 75% of the marked price. If a discount of 15% is allowed, then the profit or loss percentage is:
(a) 15.55% loss (b) 13.33% profit (c) 12.44% loss (d) 15% profit
Correct Answer: (b) 13.33% profit
20. The value of 180 ÷ ( 23 +32 +1) +37-20 equal to:
(a) 25 (b) 20 (c) 23 (d) 27
Correct Answer: (d) 27
21. The ratio of two positive numbers is 3: 7 and their LCM is 231. The smaller number is:
(a) 44 b) 55 (c) 77 (d) 33
Correct Answer: (d) 33
22. The smallest 5 digit number that leaves a remainder of 6 when divided by 7 is:
(a) 10007 (b) 10002 (c) 10009 (d) 10003
Correct Answer: (b) 10002
23. If a3 – b3 = 625, a2– b2 = 25 and a + b = 5 then the value of a2 + ab + b2 is:
(a) 25 (b) 125 (c) 625 (d) 5
Correct Answer: (c) 625
24. The simple interest on a sum of amount for 2 years at 10% per annum is ₹500. The compound interest on the same sum at the same rate for the same time is:
(a) ₹520 (b) ₹525 (c) ₹510 (d) ₹2515
Correct Answer: (b) ₹525
25. Shweta and Harish completed a project with an income of 28,000. In this project Shweta worked for 20 days and Harish worked for 30 days. If their daily wages are in the ratio of 5: 6, then Shweta’s share is:
(a) ₹12,000 (b) ₹18,000 (c) ₹10,000 (d) ₹16,000
Correct Answer: (c) ₹10,000
26. Out of Harish’s monthly salary of ₹45000, 1/3 of the expenditures are on education and 2/6 of the expenditures are on food and other necessities. The rest of the salary goes towards his savings. The amount of savings is:
(a) ₹22500 (b) ₹12000 (c) ₹11250 (d) ₹15000
Correct Answer: (d) ₹15000
27. In general, the most appropriate average value in measuring central tendency is:
(a) mean (b) median (c) mode (d) range
Correct Answer: (a) mean
28. The value of 5 2/3 + 0.73 -3.123 is equal to:
(a) 3.12 (b) 2.55 (c) 3.27 (d) 5.73
Correct Answer: (c) 3.27
