85) When an odd number is converted into the binary number, the least significant digit (LSD) is

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

87) The 2 ′s complements of binary number 010111.1100 is

88) Consider a number system with radix 20. The excess code that is necessary or its equivalent binary coded representation is

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