Study Materials for IBPS, Bank Exams : Numerical Ability/Quantitative Aptitude - Number System [MCQ]

Number System (MCQ )

1. Five-eighth of three-tenth of four-ninth of a number is 45. What is the number?
1. 470
2. 550
3. 560
4. 540
5. None of these

2. Which of the following numbers should be added to 11158 to make it exactly divisible by 77?
1. 9
2. 8
3. 6
4. 5
5. 7

3. If n is odd, (11)n + 1 is divisible by:
1. 11 + 1
2. 11 – 1
3. 11
4. 10 + 1
5. 10 – 1

4. Find unit digit in (515)31 + (515)90:
1. 0
2. 5
3. 1
4. 4
5. None of these

5. The number 899 is:
1. a number with 5 factors
2. a number with 4 factors
3. a number with more than 4 factors
4. a perfect cube
5. a number with 3 factors

6. The numerator of a fraction is multiple of two numbers. One of the numbers is greater than the other by 2. The greater number is smaller than the denominator by 1. If the denominator is given as 5 + c(c is a constant), then the minimum value of the fraction is:
1. 2/3
2. –2
3. –1/2
4. 1/2
5. 1/3

7. Find the number which when multiplied by 13 is increased by 180:
1. 20
2. 15
3. 12
4. 5
5. 14

8. Find the number of divisors of 10800.
1. 57
2. 60
3. 72
4. 62
5. 70

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:
1. 23
2. 24
3. 41
4. 14
5. 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:
1. 18, 22 and 23
2. 18, 19 and 20
3. 19, 20 and 21
4. 20, 21 and 22
5. 21, 22 and 23

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