In November 2017, Indian Government approved setting up of ‘Pradhan Mantri Mahila Shakti Kendras’. These will be set up in how many most backward districts of the country?
Pipes A and C can fill an empty cistern in 32 and 48 hrs, respectively while Pipe B can drain the filled cistern in 24hrs. If the three pipes are turned on together when the cistern is empty, how many hrs will it take for the cistern to be 2/3 full?