Mathematics Quiz For RRB NTPC : 30th November

Q1. The difference between 90% of a number and 83% of the same number is 175. What is 99% of that number?
(a) 2420
(b) 2475
(c) 2500
(d) 1750

Q2.Two cones have their heights in the ratio 1:3 and the radii of their bases in the ratio 3:1. Find the ratio of their volumes?
(a) 3:1
(b) 2:1
(c) 4:1
(d) 5:1

Q3. Ram, Karan and Rohan invested capital in the ratio of 2:3:4 for time period of 6:4:3. Find the ratio of profit distributed?
(a) 12:13:14
(b) 13:12:14
(c) 13:14:12
(d) None of these

Q4. A sum of money becomes triple itself in 16 years. In how many years will it become 5 times at the same rate?
(a) 32
(b) 15
(c) 27
(d) 30

Q5. The compound interest on Rs.30,000 at 7% per annum is Rs. 4347. The period (in years) is:
(a) 2
(b) 2½
(c) 3
(d) 4

Q6. Thirty-five per cent of 740 is 34 more than a number. What is two-fifth of the number ?
(d) 120

Q7. If 2x + 3y = 87 and 3x – 3y = 48, what is the value of x?
(d) None of these

Q8. The no of revolutions a wheel of diameter 40cm makes in travelling a distance of 176m is
(a) 240
(b) 140
(c) 40
(d) 340

Q9. The curved surface area of a cylindrical pillar is 264 square meter and its volume is 924 cubic meters. Find the ratio of its diameter to its height
(a) 3 : 7
(b) 7 : 3
(c) 6 : 7
(d) 7 : 6

Q10. If the volume of the cube is 729cm3, then the surface area of the cube will be
(a) 486cm2
(b) 456cm2
(c) 446cm2
(d) 476cm2


Important Links for RRB NTPC Recruitment 2019
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RRB NTPC Recruitment 2019: Check FAQs
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RRB NTPC Previous Year Exam Analysis
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