Multiple choice general knowledge math & puzzles

Two people can complete a work in 12 days.Six people started working. In how many days can they complete the work.

  1. 6 days

  2. 3.5 days

  3. 4 days

  4. 4.5 days

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

Using the formula M1D1 = M2D2: 2 people * 12 days = 6 people * X days. 24 = 6X, so X = 4 days. The more people working, the less time it takes.