
Originally Posted by
FM Combo
Here's a good explanation someone else made:
1) A + B start now 2 flips
2) after 4 minutes turn both upside down. (and register 4 minutes) I think you meant to only flip A, not both - 1 flip
A has one side full and the other empty
B has 3 minutes left in one side and 4 left in the other
3) after 3 minutes turn both upside down ( and register 3 minutes) Here, too, I think you only meant to flip B and not both - 1 flip
B has one side full and the other empty
A has one side with 1 minute left and the other with 3 minutes left
4) after 1 minute turn both upside down ( and register 1 minute) Again, you only want to flip B - 1 flip
now A has one side full and the other empty
B has one side with 1 minute left and the other with 6 minutes left
5)turn B upside down Just wait until time runs out in B and you are done - 0 flip
after 1 minute..(register 1 minute )
B has one side empty and the other side full
now add : 4+3+1+1= 9