-1
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Easier again:

Make 24 using only the digits 1, 4, 5 and 6, with the following conditions:

  • They should not be clubbed /joined (to form such as 64 or 51 etc.)
  • Only the basic arithmetic operations (+, -, * and /) are allowed to be performed. (Means - No use of powers / roots / factorials etc.)
  • All the given digits should be used and
  • All the given digits should be used only once
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  • $\begingroup$ Possible duplicate of Write twenty-four from four numbers $\endgroup$ – bleh Jul 18 '17 at 15:59
  • $\begingroup$ @bleh No, $\{1,3,4,6\}\neq\{1,4,5,6\}$. $\endgroup$ – Rand al'Thor Jul 18 '17 at 17:18
  • $\begingroup$ Yea, but it's the same concept $\endgroup$ – bleh Jul 18 '17 at 19:35
4
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If this is easy as I think it is

$6/(5/4-1)$

Which simplifies to

$6*4$

Which is 24

Or you can do it the other way...

$4/(1-5/6)$

Which simplifies to

$4*6$

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  • $\begingroup$ Well, good work @bleh (fast enough), though there is another way to achieve the same (can be considered as a bonus !) $\endgroup$ – Mea Culpa Nay Jul 18 '17 at 15:51
  • $\begingroup$ Yes, @bleh, you got the other one also correct ! $\endgroup$ – Mea Culpa Nay Jul 19 '17 at 5:13
0
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The answer for this is very similar to the answer here https://puzzling.stackexchange.com/a/1641/10399

$\dfrac{6}{\frac{5}{4} - 1}$.

This simplifies to $\frac{6}{1/4}$, which becomes $6 \cdot 4$, which becomes $24$.

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  • $\begingroup$ Well, good work @Ian MacDonald, though there is another way to achieve the same (can be considered as a bonus !) $\endgroup$ – Mea Culpa Nay Jul 18 '17 at 15:51
  • 1
    $\begingroup$ You should probably checkmark @bleh's answer. I literally just copy-pasted mine and changed the first formula a bit to match your inputs. $\endgroup$ – Ian MacDonald Jul 18 '17 at 15:59

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