Multiple choice general knowledge

If it took eight men ten hours to build a wall, how long would it take four men to build it?

  1. 20 hours

  2. 5 hours

  3. No time

  4. 10 hours

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

The wall is already built, so it would take 'no time' to build it again. The question asks how long it would take four men to build 'it' (referring to the same wall that already exists), not a new wall.