Multiple choice

The number that immediately precede (777)2 and (1111)2 are receptively

  1. (776)8 and (1110)2

  2. (7770)8 and (1110)2

  3. (776)8 and (11110)2

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The number immediately preceding 777 in octal is 776 (counting down: 777 → 776). The number immediately before 1111 in binary is 1110 (binary counting: ..., 1101, 1110, 1111, 10000, ...). Note that (777)₂ would be invalid since binary digits are only 0 and 1.

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