# Math Is Fun Forum

Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

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## #1 2020-05-10 11:27:14

Nasir Hassan
Member
Registered: 2020-04-11
Posts: 6

### Sides reversed Is Puzzle

Hi there.  I see there are 3 solutions mentioned (in addition to the 2 shown).  However, I actually find 28 solutions to the problem. Am I missing something?

Nasir

12 * 42
12 * 63
12 * 84
13 * 62
13 * 93
14 * 82
21 * 24
21 * 36
21 * 48
23 * 64
23 * 96
24 * 63
24 * 84
26 * 31
26 * 93
28 * 41
31 * 39
32 * 46
32 * 69
34 * 86
36 * 42
36 * 84
39 * 62
42 * 48
43 * 68
46 * 96
48 * 63
64 * 69

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## #2 2020-05-10 19:51:52

Bob
Registered: 2010-06-20
Posts: 9,355

### Re: Sides reversed Is Puzzle

hi Nasir,

I have noticed you are having fun trying the MIF puzzles.  That's great!

If you want to comment on a puzzle, it would be helpful if you provided a link to the puzzle so it can be found easily.  At the moment I'm not following which one you are referring to.

I've noticed that the site maker always gives a solution, but does not claim it's the only one.  Recently I tried a puzzle and found 8 more solutions on top of the one given.  So you may well have managed the same.

Bob

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

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## #3 2020-05-11 16:53:47

phrontister
Real Member
From: The Land of Tomorrow
Registered: 2009-07-12
Posts: 4,700

### Re: Sides reversed Is Puzzle

Hi Nasir;

I got exactly the same as you did (including the two given questions), and, like you, didn't include numbers with repeated digits (in the spirit of the puzzle).

I initially considered omitting questions whose incorrect copy was also one of the original questions - which would reduce the number of questions (including the two given questions) to 14 - but decided against that because Hungry Horace wouldn't have noticed the 'repeats' as he hadn't recorded the originals.

Here's a link to the puzzle: Sides Reversed Is Puzzle

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

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