Logic thingy - Printable Version
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Logic thingy by jameslives on 03-23-2005 at 07:07 PM
does anyone know the answer to this?
A team of 6 girls and 4 boys put together a 2200-piece jigsaw puzzle in 4 hours. The same jigsaw puzzle was put together in 8 hours by a team of two girls and five boys.
thnks
james
RE: Logic thingy by Plik on 03-23-2005 at 07:10 PM
erm wheres the question?
At the moment thats just a statement
RE: Logic thingy by jameslives on 03-23-2005 at 07:13 PM
o sos ere...
A team of 6 girls and 4 boys put together a 2200-piece jigsaw puzzle in 4 hours. The same jigsaw puzzle was put together in 8 hours by a team of two girls and five boys.
Who are better at putting jigsaw puzzles together, boys or girls, and by how much?
RE: Logic thingy by Naruto on 03-23-2005 at 07:14 PM
dude theres no question
edit: oh theres the question...
RE: Logic thingy by Tochjo on 03-23-2005 at 07:15 PM
Girls, they do 75 pieces an hour while boys do 25 pieces an hour.
RE: Logic thingy by Naruto on 03-23-2005 at 07:18 PM
quote:wow dude youre realy smart... I just started finished editing my post and u already had the answer.
Originally posted by Tochjo
Girls, they do 75 pieces an hour while boys do 25 pieces an hour.
RE: Logic thingy by toddy on 03-23-2005 at 07:19 PM
quote:
Originally posted by Naruto
wow dude youre realy smart
he is........but that wasn't really that hard to work out ¬¬
RE: Logic thingy by Menthix on 03-23-2005 at 07:57 PM
quote:
Originally posted by jameslives
Who are better at putting jigsaw puzzles together, boys or girls, and by how much?
quote:
Originally posted by Tochjo
Girls, they do 75 pieces an hour while boys do 25 pieces an hour.
How can you tell? They boys in group 1 could just have been faster boys then those in group 2?
RE: Logic thingy by .Roy on 03-23-2005 at 08:36 PM
i bet he shortned the question and it probobly metioned that they have all the same average speed.
RE: Logic thingy by albert on 03-23-2005 at 08:40 PM
lol I dunt think you can answer.. no 1 can actully tell who's doing the job.. one guy could do it all, as well as one girl, you'd need a better specification in the question 
btw that reminds me i got a maths exam tuesday 
RE: Logic thingy by segosa on 03-23-2005 at 09:53 PM
It doesn't seem possible because you don't know how much each girl/boy did. If you don't know how much then you have to assume they did amount_of_pieces/amount_of_kids pieces each. It tells you nothing of how much they actually did though.
Either that, or I just don't understand it 
Tochjo, feel free to explain how you came to that answer?
RE: Logic thingy by .Roy on 03-23-2005 at 10:10 PM
He Probobly divided all the peaces amongst the people evenly. But the question doesnt even say that you can do this. I think he didnt type the question correctly
RE: Logic thingy by Grue on 03-23-2005 at 10:30 PM
Assuming that all the boys in both situations do the puzzle at the same speed and same with the girls then:
If 6 girls and 4 boys can do it in 4 hours then 3 girls and 2 boys can do it in 8hours
so: 3g+2b=8hours and 2g+5b=8hours so 3g+2b=2g+5b and so 1g=3b so the girls can do it 3 times faster than a boy
So if 3g+2b=2200p/8h and 1g=3b then 11b=2200p/8h 1b=2200/8/11=25 so 1 boy can do 25 pieces in an hour and 1 girl is 3 times faster so 1 girl can do 75 pieces in an hour
RE: Logic thingy by .Roy on 03-23-2005 at 10:41 PM
exactly what tochjo said. But you cant ASSUME in a math question.. Its eather there is no answer. Or he just copped it wrong
RE: Logic thingy by gif83 on 03-23-2005 at 10:45 PM
of course you can assume in a maths question.... everyone does.
when someones says what's 1+1... you assume you don't need to answer in binary...
don't argue... i have a maths degree
RE: Logic thingy by Chrono on 03-23-2005 at 10:47 PM
quote:
Originally posted by Naruto
wow dude youre realy smart...
