Multiple choice general knowledge math & puzzles

What is 0.003 x 0.07 as a percentage?

  1. 0.0021%

  2. 0.021%

  3. 0.21%

  4. 2.1%

  5. 21%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

First multiply: 0.003 × 0.07 = 0.00021. To convert to percentage, multiply by 100: 0.00021 × 100 = 0.021%. Common errors come from miscounting decimal places - option A forgets to multiply by 100, option C shifts one place, option D shifts two places, and option E shifts three places.

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