EM-2326
Rate and average speed
E Math · Secondary 4 · Medium · Rate and average speed
Two painters, Ali and Ben, paint a wall together. Ali alone can paint the wall in 12 days. Together, they finish the wall in 4 days. How many days would Ben take to paint the wall alone?
- 6 days
- 8 days
- 16 days
- 18 days
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.