RRB RPF RPSF SI and CONS Model Papers 2 with solutions

Question : 34 of 120

Marks: +1, -0

A can do as much work as B and C together can do. A and B can together do a piece of work in 9 hours 36 minutes and C can do it in 48 hours. The time (in hours) that B needs to do the work alone, is :