Shoutbox

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?

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

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

exactly what tochjo said. But you cant ASSUME in a math question.. Its eather there is no answer. Or he just copped it wrong

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