Subject :IMO Class : Class 5
A barrel can be filled in 1 hr by 6 taps flowing at the same rate. How long will it take for 4 such taps to fill the barrel?
(A) 1 hr 15 mins
(B) 1 hr 20 mins
(C) 1 hr 25 mins
(D) 90 mins
Ans 1: (Master Answer)
Class : Class 1
The correct answer is D.