A,B,C can do a work in 30,25,28 days respectively. A and B started the work together,after 5 days B left the work and C joined.Then how many days will take to complete this work.
Answers
Answered by
0
total work =2100
A can do in one day =2100/30
= 70
B can do in one day =2100/25
=84
c can do in one day =2100/28
=75
A+B work for 5 days =5×(70+84)
=770
remaining work= 2100-770
=1330
A+C one day work= 70+75
=145
so that remaining work will be done in =1330/145
=9.17 days
Similar questions