Multiple choice general knowledge math & puzzles

The logarithm (base ten) of five hundred times an integer is three. Find that number!

  1. 450

  2. 8

  3. 1500

  4. 2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

We need to solve: log(500n) = 3. This means 500n = 10^3 = 1000, so n = 1000/500 = 2. Therefore, the integer is 2. Option A (450), B (8), and C (1500) are incorrect solutions.

AI explanation

log₁₀(500x)=3 means 500x=10³=1000, so x=1000/500=2. The other options come from misreading the equation (e.g., treating 500x as the answer itself, or misplacing the exponent).

Keep practicing — related questions