Multiple choice general knowledge math & puzzles

Note: This riddle must be done IN YOUR HEAD ONLY and NOT using paper and a pen. Try it. Take 1000 and add 40 to it. Now add another 1000. Now add 30. Another 1000. Now add 20. Now add another 1000. Now add 10.

  1. 5000

  2. 4100

  3. 4800

  4. 4070

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

This is a mental math trick question. 1000+40+1000+30+1000+20+1000+10 = 4100. The riddle relies on people mistakenly grouping as thousands and getting 5000.