27 workers can build a wall in 8 days. How many days will 8 workers take to build the same wall, working at the same rate?

💡 Solution & Explanation

The total work is 27 × 8 = 216 worker-days. More workers means fewer days, so divide: 216 ÷ 8 = 27 days. Multiplying instead (2.37 days) would mean more workers take longer, which cannot be right.