# Digital Logic - Number representation and computer arithmetic

16:   When an odd number is converted into the binary number, the least significant digit (LSD) is
 A. 0 B. 1 C. 0 or 1 D. None of these Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
17:

Which one of the following is the result of dividing (0011 1000)2 by (1000)2?

 A. (1100)2 B. (1110)2 C. (0011)2 D. (00111)2 Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
18:   The 2's complements of binary number 010111.1100 is
 A. 101001.1100 B. 101000.0100. C. 010111.0011 D. 101011.0011 Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
19:   Consider a number system with radix 20. The excess code that is necessary or its equivalent binary coded representation is
 A. 7 B. 6 C. 3 D. 4 Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. Write your comments here:
20:

A decimal number has 30 digits. Approximately, how many digits would the binary representation have?

 A. 30 B. 50 C. 101 D. 120 Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Write your comments here:

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