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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 ?
(a)45
(b)90
(c)180
(d) 120

Q7. If 2x + 3y = 87 and 3x – 3y = 48, what is the value of x?
(a)11
(b)29
(c)72
(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

Solutions:

Maths Questions For RRB NTPC Exam 2019-20 : 30th November_50.1 Maths Questions For RRB NTPC Exam 2019-20 : 30th November_60.1 Maths Questions For RRB NTPC Exam 2019-20 : 30th November_70.1

Maths Questions For RRB NTPC Exam 2019-20 : 30th November_80.1

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