Home > Practice > Arithmetic Aptitude > Time and Work > Miscellaneous
1. A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in :

Solution:
RationofratesofworkingofAandB=2:1So,ratiooftimestaken=1:2B's1day'swork=112A's1day'swork=13;(2 timesofB'swork)(A + B)'s1day'swork=16+112=312=14So,AandBtogethercanfinishtheworkin4days.

You must login to add comments. Login now.