Multiple choice

The value of log 80 + log 20 - log 100 to base 2 is

  1. 1

  2. 5

  3. 3

  4. 4

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Use the formula: log a + log b - log c = log ab/c log 80 + log 20 - log 100 = log 16 to base 2