What is the minimum number of minutes that it will take for all of the pets to safely be together in Qasala?
Anaila asked:
A Grundo, a Gnorbu, a Gelert, and a Grarrl need to walk from Sakhmet to Qasala during a really bad heat wave. The heat is so bad, it’s not possible to cross the open desert without some sort of shade. Fortunately, they have one umbrella. Unfortunately, however, only a maximum of two pets at a time can fit under the umbrella. The Grundo can cross the desert alone in 20 minutes. The Gnorbu can make the crossing alone in 16 minutes. The Grarrl can make the crossing alone in 8 minutes. And the Gelert can make the crossing in 4 minutes. Note that when two pets are making the crossing, they must do so at the pace of the slower pet!
What is the minimum number of minutes that it will take for all of the pets to safely be together in Qasala?
IBTESAM
February 6th, 2009 at 5:18 am
Umm… 28 minutes.
Ok, lets have another go.
20 + 4 + 16 + 4 + 8 = 52
February 8th, 2009 at 11:51 am
The umbrella back it will come back with the reply properly and grarrl and grarrl will come back it.
The umbrella back it will come back it will take minutes now gnorbu and gelert and wil find it.