TWO pipes P and Q can fill a cistern in 12 and 18 hrs,both pipes were opened at 10:00 AM and cistern was full at 6 PM what could be the minimum possible duration for which one of the pipes must have been closed during that interval?

Rishab 1y ago

satyam pandey 1y ago

Hrithik Kumar 1y ago

Laraib 1y ago