Daily Math Challenge

Sharpen your math skills with a new problem every Tuesday to Friday. These daily challenges are perfect for those who enjoy quick, engaging puzzles.

Problem 1168

Posted: July 2, 2024

68 % of users got this correct

Working together Amy and Bill can paint a room in 1 hour and 12 minutes. Amy and Charlie together can paint the same room in 1 hour and 30 minutes, while Bill and Charlie together can paint the room in 2 hours. How long (in hours) does it take Charlie to paint the same room working alone?

Problem submitted by Mike Schieffer, Austin, TX

View Past Problems