A does 20% less work than B. If A can finish a piece of work in 7 hours, then B can finish it in


Number of hours taken by A to finish the work = hours = hours


Work done by A in one hour :


Let number of hours taken by B to finish the work :


A can work 20% less than B that is = times of B’s work.


Here , : 1 = :


=


X = = 6 hours.

11
1