The purpose of this test is to test your knowledge of number systems. Multiple Choice Questions (MCQs) based on Number System Concepts will be presented to you with four options. You will select the most appropriate answer and move on to the next question without wasting time. Your online test score will be available after you have completed the entire test.

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Created on January 16, 2023 By Kamal Raj

Number

1 / 20

What smallest number should be subtracted from 762009 so that it is divisible by 8?

0

1

6

7

2 / 20

Given that 1+2+3+.. +8 = 36, find the value of (11+12+13+..+18)?

116

110

112

114

3 / 20

Which of the following is the output of 225 * 225 – 105 * 105?

33400

39600

24800

48100

4 / 20

Which of the following numbers is a prime number?

167

213

350

437

5 / 20

A number when multiplied by 9 increases by 272. What could be the possible value of number?

30

34

32

36

6 / 20

Donald Trump was asked to multiply a number by 15 but by mistake he multiplied by 35 and the answer was 200 more than the correct answer. What was the number?

5

10

15

20

7 / 20

Find the number of three-digit numbers which are divisible by 6?

150

130

120

110

8 / 20

What number be added to 1122 so that it is exactly divisible by 12?

6

9

the number itself (or) 12

None

9 / 20

What is the unit digit in the product of 851 * 1342 * 453 * 224?

4

5

6

7

10 / 20

If one-fourth of a number is 62, find the 50% of that number.

334

568

496

622

11 / 20

Which of the following is the result of 1303 x 1303?

1697809

1697089

1697980

1697890

12 / 20

The sum of first n odd natural numbers is be given by?

(n+1)²

n²+1

n²

n²-1

13 / 20

What is the sum of first 156 natural numbers?

12246

13346

12346

13246

14 / 20

If (2Φ + 1) is a prime number, which one of the following digits could be the value of Φ?

3

4

5

6

15 / 20

Which of the following numbers is divisible by 9?

67578

56785

45678

65889

16 / 20

3X6 is an unknown number and X is the missing digit. If the unknown number is divisible by 6, the missing digit is?

1

2

3

4

17 / 20

If the unknown number 327X6 is divisible by 9, find the value of X?

2 or 7

1 or 8

0 or 9

3 or 6

18 / 20

What is the difference in the place value of 9 in the numeral 794893?

49950

89910

10010

80910

19 / 20

What is the sum of all odd numbers up to 290?

20215

22105

20125

21025

20 / 20

How many different prime factors are there for the number 9400?