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Old 12-June-2006, 03:43 AM
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clop clop is offline
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Smile A number puzzle that might send you insane

Good afternoon.

Here's a nice, simple-looking number puzzle I came across recently.


Make 24 using the numbers 1, 4, 5 and 6.

Each number must be used exactly once.

The allowed operations are add, subtract, multiply and divide.

You cannot use powers.

You cannot concatenate numbers (i.e. you can't use 4 and 5 to make 45).

You can use brackets.


There are two solutions, but they are maddeningly difficult to find.

Good luck,

clop
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Old 12-June-2006, 11:34 PM
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montebianco montebianco is offline
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If there is any kind of "spoiler" feature on this board, I can't find it - is there one?
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Old 12-June-2006, 11:43 PM
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montebianco montebianco is offline
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OK, I posted the answer here, at another forum, because I know how to use the spoiler feature there. If there is one here, I don't know how to use it. . .
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Old 13-June-2006, 12:23 AM
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Wow wicked, did you work them both out yourself?

clop
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Old 13-June-2006, 02:01 AM
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Quote:
Originally Posted by clop
Wow wicked, did you work them both out yourself?

clop
Yes, although the approach was a lot closer to brute force than I would like to admit
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