Question

X y and z can do a piece of work in 30 40 and 50 days respectively. All three of them began the work together but y left 4 days before complation of the work . In how many days the work completed

Answer 1

Step-by-step explanation:

They began the work together but C left 4 days before the completion o. ... Work done by A and B together in the last 4 days = 4 (1/24 + 1/30) = 3/10. .... In how many days C alone can do the same work?