Brain Teasers
Close Quarters
Take two ordinary U.S. quarters and touch them together. Tough, huh?
Now take a third quarter and position it in a fashion so that it touches the other two. How many quarters can you add so that each quarter touches every other quarter?
For those of you outside the U.S., a quarter is a circular coin about 2.4 cm in diameter, and a thickness of about .15 cm.
Now take a third quarter and position it in a fashion so that it touches the other two. How many quarters can you add so that each quarter touches every other quarter?
For those of you outside the U.S., a quarter is a circular coin about 2.4 cm in diameter, and a thickness of about .15 cm.
Answer
5You take one, lay it flat, then take two more, laying them partially on the 1st quarter so they touch each other. The last two are tricky in that they have to be standing on edge, like a teepee or playing cards leaning against each other at the tops, but standing on the bottom quarter, with their edges touching the 2 and 3rd quarters placed. This is not easy, but is the most you can place, with each quarter touching all the others.
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