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Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
---|---|---|---|---|---|---|

1.7 | Decimal Number System and Other Numbering Systems |

*1. Which of the following numbers is the regular form of 5 × 10 ^{7} + 3 × 10^{4} + 9 × 10^{1}?*

- 539
- 5,003,009
- 50,003,009
- 50,030,090

**Correct Answer: D**

*2. The number 40,500 when written in decomposed form becomes... *

- 4 × 10
^{5}+ 5 × 10^{3} - 4 × 10
^{4}+ 5 × 10^{2} - 40
^{5}+ 50^{3} - 40 × 10
^{3}+ 5 × 10^{2}

**Correct Answer: B**

*3. The binary number 11010 corresponds to ................... in the decimal system*

- 26
- 28
- 50
- 52

**Correct Answer: A**

*4. The number 89 when written in the binary system becomes *

- 1010100
- 1011100
- 1011001
- 1101011

**Correct Answer: C**

*5. What is the result of the binary operation 11011 + 110?*

- 100001
- 10010
- 11111
- 101101

**Correct Answer: A**

*6. What number in the decimal system does the result of binary operation 11101 - 1100 correspond? *

- 16
- 17
- 18
- 19

**Correct Answer: B**

*7. What is the binary result of the operation 10011 × 111?*

- 133
- 10000101
- 1000101
- 1011011

**Correct Answer: B**

*8. What is the binary result of the operation 11000 ÷ 11?*

- 1000
- 1111
- 101
- 111

**Correct Answer: A**

*9. Which of the numbers is the greatest? *

- (AB)
_{16} - (171)
^{10} - (10101011)
^{2} - (100)
_{16}

**Correct Answer: D**

*10. Which of the binary equalities below is true? *

- 111 × 11 = 10010 + 100
- 1011 + 1001 = 101 × 100
- 11110 ÷ 110 = 1101 - 101
- 111 - 11 = 1011 ÷ 111

**Correct Answer: B**

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