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?
Do you know the answer?!?
(Please use keywords, and keep guesses under 50 characters)
2006-07-26 23:33:06 · 12 answers · asked by i like cheese 2 in Entertainment & Music ➔ Jokes & Riddles
eh????
2006-07-26 23:36:42 · answer #1 · answered by Kelly 5 · 0⤊ 1⤋
Grarrl + Gelert cross = 8 mins
Gelert returns = 4 mins
Grundo + Gnorbu cross = 20 mins
Grarrl returns = 8 mins
Grarrl + Gelert cross = 8 mins
48 mins
You need to make sure that two slowest cross together, with a faster creature waiting to return the umbrella.
2006-07-26 23:46:16 · answer #2 · answered by dumberthangeorgebush 5 · 0⤊ 0⤋
Grarrl (8) + Gelert (4) cross = 8 mins
Gelert (4) returns = 4 mins
Grundo (20) + Gnorbu (16) cross = 20 mins
Grarrl (8) returns = 8 mins
Grarrl (8) + Gelert (4) cross = 8 mins
A minimum of 48 mins.
2006-07-26 23:51:58 · answer #3 · answered by alloy 4 · 0⤊ 0⤋
20 crosses with 4 = 20
4 returns = 4
16 crosses with 4 = 16
4 returns = 4
8 crosses with 4 = 8
Total time = 20+4+16+4+8=52 minutes
2006-07-26 23:41:49 · answer #4 · answered by kpizura 3 · 0⤊ 0⤋
Grundo + Gelert cross= 20 mins
Gelert comes back = 4 mins
Gnorbo + Gelert cross = 16 mins
Gelert comes back =4 mins
Gnarrl + Gelert cross =8 mins
So min. no. of mins to cross = 52
P.S or they could take another route other than the desert lol
2006-07-26 23:43:26 · answer #5 · answered by kelly d 2 · 0⤊ 0⤋
8 carries 16
4 carries 20
minimum min = 8
2006-07-28 08:42:28 · answer #6 · answered by itsa o 6 · 0⤊ 0⤋
The Grundo and Gelert cross in 20
the Gelert comes back in 4
The Gelert and Gnorbu cross in 16
the Gelert comes back in 4
the Gelert and Grarrl cross in 8
Total = 52 minutes
I can't think of a faster way >> Reads everyone else's responses: 48 minutes is right and I was wrong
2006-07-27 00:15:09 · answer #7 · answered by mommy_mommy_crappypants 4 · 0⤊ 0⤋
4+8 go = 8
4 back =12
20+16 go =32
8 back =40
8+4 go = 48mins
2006-07-27 08:41:46 · answer #8 · answered by big_dave_x 4 · 0⤊ 0⤋
Grundo 20 mins, the rest fry like the devils they are and get eaten by the vultures
2006-07-27 04:42:50 · answer #9 · answered by Yokay Booboo 3 · 0⤊ 0⤋
im probally wrong but since there is only one umbrella one of them would have to go back and forth with the rest so if they sent to fastest one it would be 52 min
2006-07-26 23:44:13 · answer #10 · answered by Ssoroka 4 · 0⤊ 0⤋
make that 52 minutes
2006-07-26 23:48:31 · answer #11 · answered by Anonymous · 0⤊ 0⤋