Multiple choice general knowledge math & puzzles

Which of the following conversions is incorrect?

  1. 30 cm = 0.0003 km

  2. 3000 tonnes = 3 000 000 kg

  3. 20 000 mg = 2 g

  4. 670 km = 670 000 000 mm
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

20,000 mg is equal to 20 g (since 1,000 mg = 1 g). The option states it is 2 g, which is incorrect. Other conversions: 30 cm = 0.0003 km is correct ($30/100,000$), and 3000 tonnes = 3,000,000 kg is correct.

Keep practicing — related questions