Puzzle 685
In my money box, I found $36.80 made up of equal numbers of quarters, dimes, and nickels.
How many of each coin did I find?
Puzzle Copyright © Kevin Stone
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Puzzle 686
What number comes next in the sequence:
11 13 17 31 37 71 73 79 97 {?}
Puzzle Copyright © Kevin Stone
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Puzzle 687
How much soil is there...
...in a circular hole 2 metres deep and 1 metre across?
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Puzzle 688
What is the smallest integer, which, when multiplied by 7 gives a number consisting of only 4's?
Puzzle Copyright © Kevin Stone
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