Brain Teasers 15 – 9

1.  How are the following numbers arranged?    2   3   6   7   1   9   4   5   8
2.  What’s the fewest amount of coins needed to pay for anything that might be priced less than a dollar?  (1 cent to   99 cents.)
3.  (A long time ago!) a man went into the post office clerk, and – offering a dollar – said, “Give me some 2-cent stamps, ten times as many 1-cent stamps, and the balance in 5-cent stamps.”  How can the clerk meet this request?
4.  MINI-CHALLENGES (Recognition – and PRIZES! –  given for ANY of these answers!).  The fraction below uses all the non-zero digits from 1 – 9 and is equal to 1/2.  Can you rearrange these digits and get fractions equal to 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9?

6729 / 13458

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