bonanova Posted April 16, 2018 Report Share Posted April 16, 2018 The professor writes a problem on the whiteboard, thus:25 - 55 + (85 + 65) = ?He then inexplicably states that, even though you might disagree, the correct answer is actually 5! Explanation? Quote Link to comment Share on other sites More sharing options...
0 Molly Mae Posted April 16, 2018 Report Share Posted April 16, 2018 6 hours ago, bonanova said: The professor writes a problem on the whiteboard, thus:25 - 55 + (85 + 65) = ?He then inexplicably states that, even though you might disagree, the correct answer is actually 5! Explanation? Classy. 25 - 55 + (85 + 65) = 120 = 5! = 5*4*3*2 Quote Link to comment Share on other sites More sharing options...
0 CaptainEd Posted April 16, 2018 Report Share Posted April 16, 2018 Cute, Bonanova! Good solve Molly Mae! Quote Link to comment Share on other sites More sharing options...
0 Donald Cartmill Posted June 2, 2018 Report Share Posted June 2, 2018 The answer given is 5! , which closely resembles 51 or 5 ! exclamation mark. It is however 5 factorial or 5 x 4 x 3 x 2 x 1= 120 25 - 55 + ( 85 + 65 ) = 120 =5 ! 25 - 55 + (150 ) ; -55 + 175 ; 175 - 55 == 120 Quote Link to comment Share on other sites More sharing options...
0 DejMar Posted June 3, 2018 Report Share Posted June 3, 2018 On 4/16/2018 at 6:38 PM, bonanova said: The professor writes a problem on the whiteboard, thus:25 - 55 + (85 + 65) = ?He then inexplicably states that, even though you might disagree, the correct answer is actually 5! Explanation? Spoiler Though I find such a puzzle to have some cleverness, the problem is with punctuation. It is missing. The sentence might should end with one or more additional exclamation points, implying emphasis, even though the initial ! character would be the factorial. Of course, the sentence should also be phrased differently. The verb "states" implies that the sentence should end in a full stop (period). This word might should be replaced with "exclaims" to support the additional one or more exclamation points that is suggested. Quote Link to comment Share on other sites More sharing options...
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bonanova
The professor writes a problem on the whiteboard, thus:
25 - 55 + (85 + 65) = ?
He then inexplicably states that, even though you might disagree, the correct answer is actually 5!
Explanation?
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