Number system PDF, Number system chart, Indian number system, What is number system with example, Types of number system, What is number system in Maths


1. Which of the following is the correct representation for number 99?

(A) IC

(B) XCVIII

(C) XCIX

(D) L + XXXXIX


2. Find the value of MXLII + CXCIV - LXIII

(A) MCLXXIII

(B) MCCCCXXIX

(C) MCCLXXIII

(D) MCXLIIV


3. Find the sum of 4-digit greatest number and 6-digit smallest number, each having 3 different digits.

(A) 109999

(B) 109989

(C) 110020

(D) 1000989


4. Subtract 28,576 from the sum of the least and the greatest 5-digit number formed using the digits 3, 0, 5, 8 and 1.

(A) 67,092

(B) 84,563

(C) 68,932

(D) 73,695


5. Which of the following are four consec- utive composite numbers?

(A) 22, 23, 24, 25

(B) 60, 61, 62, 65

(C) 56, 57, 58, 59

(D) 90, 91, 92, 93


6. A pair of twin prime number between 70 and 100 is....

(A) 71, 73

(B) 79, 83

(C) 97,99

(D) 87, 89


7. The product of Place-value and Face value of digit 6 in the number 7860443 is......

(A) 3652800000

(B) 3600000000

(C) 3626580000

(D) 360000


8. Find the smallest five digit number using three different digits.

(A) 10000

(B) 20000

(C) 00021

(D) 10002


9. If a number is divisible by 8 and 3 both, then by which other numbers will it always be divisible.

(A) 8 and all its factors

(B) factors of 3

(C) factors of 24

(D) factors of 12


10. Select values of m, n to make the statement true.

127 x 15=(....m....... × 15) + (....n... × 15)

(A) m = 100, n = 15

(B) m = 120, n = 15

(C) m = 15, n = 27

(D) m = 100, n = 27


11. In 563672, the place value of 6 at the ten thousands place is....... times the place value of 6 at the hundreds place.

(A) 1000

(B) 100

(C) 10

(D) 10000


12. Fill in the blank with the correct option. CCCXC + LIX =........

(A) CCCCXLIX

(B) CDXLIX

(C) CDCXLIX

(D) CDXXXXIX


13. I am a five-digit even number. I have 9 at my tens place. The digit at the ten thousands place is three less than the digit at the tens place. The digit at the hundreds place is half the value of the digit at the ten thousand place. The digit at the thousand place is double the digit at the ones place. Who am I?

(A) 68494

(B) 61392

(C) 64391

(D) 68394


14. Which of the following numerals are arranged in ascending order?

(A) 6821, 6862, 6261, 2861

(B) 9075, 7905, 9701, 5907

(C) 10529, 12049, 12509, 15249

(D) 23124, 23213, 21467, 2764


15. Rounding off 7348561 to the nearest hundred is..........

(A) 7348000

(B) 7348600

(C) 7348560

(D) 7348500


16. Seventy six lakh four thousand eighty three is written as..... international number system. in the

(A) 7,640,083

(C) 7,60,483

(B) 76,483

(D) 76,04,083


17. Sum of place values of the underlined digits in the given number is.... 695281 5348573

(A) 305071

(B) 300551

(C) 305017

(D) 3005071


18. Choose the smallest possible 7-digit number that you can from using each of the following digits 5, 1, 8, 0, 3:

(A) 1310058

(C) 1130058

(B) 1001358

(D) 1000358


19. What should be subtracted from 3 million to get 1765498?

(A) 1234602

(B) 1234502

(C) 1324502

(D) 1234402


20. On dividing 2272 as well as 875 by a 3-digit number N, we get the same remainder. The sum of the digit of N is-

(A) 10

(C) 12

(B) 11

(D) 13


21. The successor of 1 million is-

(A) 2 millions

(C) 100001

(B) 1000001

(D) 10001


22. Whole numbers are closed under which operation?

(A) Subtraction

(B) Division

(C) Multiplication

(D) All of these


23. Estimate the product 5980 × 428 by rounding off each number to the nearest hundreds.

(A) 236000

(B) 240000

(C) 2400000

(D) 3000000


24. Ram, Rahul and Rohit shared a bag of marbles. The bag had 272 marbles. How many marbles were left over after the friends shared them equally?

(A) 90

(C) 9

(B) 91

(D) 2


25. The product of a non-zero whole number and its successor is always:

(A) Divisible by 3

(B) An odd number

(C) A prime number

(D) An even number


26. What are Prime factors of 37800?

(A) 2×2×3×3×5×5×7×7

(B) 2×2×2×3×3×3×5×5×7

(C) 8×27×25×7

(D) 2×4×25×27×7


27. A student multiplied 7236 by 65 instead of multiplying by 56. By how much was his answer greater than the correct answer?

(A) 87555

(B) 65124

(C) 72360

(D) 65000


28. There are 17 rooms in a school, every room has two fans and four LED bulbs. How many switches are required for the school if every fan requires a switch and one switch is required for every two bulbs ?

(A) 34

(B) 68

(C) 102

(D) 17


29. Which of the following two-digit number when added to 27, gets reversed?

(A) 27

(B) 24

(C) 47

(D) 70


30. A tall office building has 85 floors. Each floor has 48 windows. Each window is to be decorated with 64 tiny bulbs. How many bulbs would be needed to decorate all the windows?

(A) 261120

(B) 273920

(C) 456960

(D) 209920


31. The smallest 5-digit number that is divisible by 19 is:

(A) 10019

(C) 10032

(B) 10013

(D) 10000


32. The sum of two number is 11009. If one of them is 9999, the other number is:

(A) 1010

(C) 2110

(B) 1110

(D) 21008


33. Round off 37507 to the nearest hundreds is:

(A) 37500

(C) 38000

(B) 37000

(D) 30000


34. Find the difference between the number 36490 and the number obtained by interchanging the places of 6 and 9.

(A) 2970

(B) 3030

(C) 2070

(D) 2790


35. The sum of the digits of a number is subtracted from the number. The resulting number is always divisible by:

(A) 2

(C) 8

(B) 5

(D) 9


36. The number of two digit natural numbers is:

(A) 69

(C) 91

(B) 90

(D) 99


37. Two lakh two thousand, in digits, is written as:

(A) 20200

(B) 200200

(C) 202000

(D) 22000


38. What is the sum of the first four prime numbers?

(A) 10

(C) 26

(B) 11

(D) 17


39. What will be the difference between it greatest 6-digit number and the greatest 5-digit number?

(A) 100000

(C) 99999

(B) 100001

(D) 900000


40. Which of the following statement is correct?

(A) Zero is an odd number

(B) Zero is an even number

(C) Zero is a prime number

(D) Zero is neither odd nor even number


41. What is the sum of the place value of 5 in the number 584356?

(A) 10

(C) 5050

(B) 50050

(D) 500050


42. If a is predecessor of b, then find the value of (a - b) and (b-a):

(A)-1 and 1

(C) 0 and-1

(B) 1 and-1

(D) 1 and 0


43. Which of the following number is completely divisible by 187

(A) 444444

(C) 666660

(B) 555555

(D) 666666


44. The sum of its digits is subtracted from a number. The resulting number will always be divided:

(A) By 2

(B) By 5

(C) By 8

(D) By 9


45. Find a 4 digit number, formed by different digits, in which 9 is at the place of tens?

(A) 1092

(C) 2091

(B) 1290

(D) 2190


46. 101 x 0 x 11 is equals to:

(A) 112

(C) 0

(B) 1010

(D) 1111


47. Which digit has the maximum place value in the number 59368?

(A) 9

(C) 5

(B) 8

(D) 6


48. Find the nearest value to ten thousands of 56789 and 98765-

(A) 59000, 10009

(B) 60000, 100000

(C) 59900, 10080

(D) 62000, 10675


49. How many numbers are there between 1 and 100 which are completely divisible by 6?

(A) 15

(B) 17

(C) 16

(D) 19


50. Which is largest number of the following four numbers ?

8080, 8800, 8008, 8880

(A) 8080

(B) 8008

(C) 8880

(D) 8800

Answer- 1- C 2-A  3-B  4-A  5-D  6-A  7-D  8-D  9-C  10-D  11-B  12-B  13-D  14-C  15-B  16-D  17-A  18-D  19-B  20-A   21-B   22-C   23-C   24-D  25-D  26-B  27-B  28-B  29-C   30-A  31-B  32-A  33-A  34-A  35-D   36-B  37-C   38-D   39-D   40-D   41-D  42-A  43-D  44-D  45-A  46-C  47-C  48-B  49-C  50-C


Number system PDF

Number system chart

Indian number system

What is number system with example

Types of number system

What is number system in Maths