A,B and C can do a piece of work in 21 days,42 days and 14 days respectively. A started the work. B joined him after 3 days. If C joined them after 5 days, for how many days did A work?

2
Log in to add a comment

A,B and C can do a piece of work in 21 days,42 days and 14 days respectively. A started the work. B joined him after 3 days. If C joined them after 5 days, for how many days did A work?

2
Log in to add a comment

now B joined and the accuracy became 1/21+1/42=3/42. smilarly a worked with b for 5 days . and with C, A worked for 8 days .

the total days A worked = 22 days