Monday, March 8, 2010

Primary 5 Question - 3 men, A,B, and C, worked together to paint a wall ...

Question



3 men, A,B, and C, worked together to paint a wall. If the painting was done by one man, the time taken to complete the wall for A,B and C would have been 6hours, 8 hours and 12hours respectively. A and B had painted for 3hours after which A rested, B and C then continued with the painting. What would be the total number of hours taken to complete the wall.


Answer