Question:
A and B can do a work in 12 days ,B and C in 15 days and C and A in 20 days. If A ,B , C work together, they will complete the work in :
[This Question asked in following exams-
· SSC CGL 1999
· SSC CGL 2006
· SSC CGL 2013
· SSC CPO 2003
· SSC CPO 2006]
Options:
(1)5 days
(2)7(5/6) days
(3)10 days
(4)15 2/3 days
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