10 Important MCQ on Number System (Part-1) For SBI Clerical Canara Bank PO DMRC Railway Exam 2018

1. Five-eighth of three-tenth of four-ninth of a number is 45. What is the number?
(a) 470
(b)550
(c)560
(d)540

2. Which of the following numbers should be added to 11158 to make it exactly divisible by 77?
(a) 9
(b) 8
(c)6
(d)7

3. If n is odd, (11)n + 1 is divisible by:
(a) 11 + 1
(b)11 – 1
(c) 11
(d) 10 + 1

4. Find unit digit in (515)31 + (515)90:
(a) 0
(b) 5
(c) 1
(d) 4

5. The number 899 is:
(a) a number with 5 factors
(b) a number with 4 factors
(c) a number with more than 4 factors
(d) a perfect cube

6. The least number to be added to 3545 so that 65 divides the result exactly is:
(a) 50
(b) 40
(c) 30
(d) 20

7. Find the number which when multiplied by 13 is increased by 180:
(a) 20
(b) 15
(c) 12
(d) 5

8. Find the number of divisors of 10800.
(a) 57
(b) 60
(c) 72
(d) 62

9. The sum of the digits in a two-digit number is 5. If 9 is subtracted from the number, the result is the number with the digits reversed. The number is:
(a) 23
(b) 24
(c) 41
(d) 32

10. Three consecutive numbers such that twice the first, 3 times the second and 4 times the third together make 182. The numbers in question are:
(a) 18, 22 and 23
(b) 18, 19 and 20
(c) 19, 20 and 21
(d) 20, 21 and 22