Multiple choice

Two men working eight hours a day complete a job in 12 days. How many days will 4 men working 6 hours a day take to complete the same job?

  1. 6

  2. 8

  3. 12

  4. 16

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

Using the formula (M1 * D1 * H1) = (M2 * D2 * H2), we have (2 * 12 * 8) = (4 * D2 * 6). This simplifies to 192 = 24 * D2, so D2 = 8.

AI explanation

Using the formula M1 times D1 times H1 equals M2 times D2 times H2, we have 2 men times 12 days times 8 hours equals 4 men times D2 days times 6 hours. This gives 192 equals 24 times D2. Solving for D2 yields 8 days.