Dreamer wrote:20. It turns out there is a final exam for this course. I give you 8 marbles that are exactly alike except that one of them is slightly heavier than the others. I then give you a balance scale and ask you to determine the heavier marble in 3 weighings. Will you pass your final exam?
Dreamer wrote:24. You and a friend stand side by side and begin walking so that your right feet hit the ground at the same time. You take exactly 3 steps for each 2 steps of your friend. How many steps go by before you and your friend’s left feet simultaneously hit the ground?
Dreamer wrote:21. Okay, you got through that one, but now it turns out that you don’t obtain math certification unless you can determine the heavier marble in only 2 weighings. Will you get your certification?
22. Why does time seem to pass more quickly as we get older?
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