Wrath knowledge needed! Struggling to help 10 yr old daughter with homework

What's the formula to work out this? Or is it just trial and error doing dozens of calculations and trying all variables until you get it?

ABC x D = BADC. What single numbers (1-9) do the letters represent??

Posted By: South_West_Canary on January 10th 2016 at 12:44:22

Message Thread

Wrath knowledge needed! Struggling to help 10 yr old daughter with homework (General Chat) - South_West_Canary, Jan 10, 12:44:22
- So I brute forced it (General Chat) - Old Man, Jan 10, 14:07:48
  - FFS, parsing as HTML again. Hang on. (n/m) (General Chat) - Old Man, Jan 10, 14:08:36
    - OK. Here is the answer. (General Chat) - Old Man, Jan 10, 14:09:23
      - (so the question is ill-posed since as stated it has no solutions) (n/m) (General Chat) - Old Man, Jan 10, 14:19:20
        
        This seems to be the consensus from my research too (n/m) (General Chat) - CauldRon, Jan 10, 14:28:19
- FFS. It's parsing my less than sign as HTML. Try this. (General Chat) - Old Man, Jan 10, 13:41:32
  - I too have been working out on The last digit of D x C is equal to C.? (General Chat) - South_West_Canary, Jan 10, 13:47:28
    - Thought I was getting there with C is 8 and D 6 (General Chat) - South_West_Canary, Jan 10, 13:49:45
      - Honestly I think this has no solutions unless you allow zeroes (n/m) (General Chat) - Old Man, Jan 10, 13:50:50
        
        I'll let you know once teacher explains it to her! (n/m) (General Chat) - South_West_Canary, Jan 10, 13:53:18
  - (I've assumed a, b,c d all to be different, if they're not there are more cases... (General Chat) - Old Man, Jan 10, 13:46:03
- Damn thing is truncating my post. Hang on...got it (General Chat) - Old Man, Jan 10, 13:39:56
- I can find two solutions. But both include a zero and the problem says 1-9 (General Chat) - Old Man, Jan 10, 13:38:53
- I can find two solutions. But both include a zero and the problem says 1-9 (General Chat) - Old Man, Jan 10, 13:38:30
- 124 X 9 gives a four digit product on the right hand side 1116 (General Chat) - essexcanaryOTBC, Jan 10, 13:29:55
  - PS D can't be 9 because of the maximum rule earlier (General Chat) - essexcanaryOTBC, Jan 10, 13:30:48
    - sorry I meant B not D - was typing fast whilst in transit earlier - just noticed it (General Chat) - essexcanaryOTBC, Jan 10, 19:29:02
    - Need more than luck the way this is going! 😊 (n/m) (General Chat) - South_West_Canary, Jan 10, 13:48:12
- Max 999 X 9 gives 8991 so D < 9 etc (n/m) (General Chat) - essexcanaryOTBC, Jan 10, 13:25:53
  - Simarly it can't be 111 X 1 since B > 0 etc (n/m) (General Chat) - essexcanaryOTBC, Jan 10, 13:26:53
- Try working out constraints using maximums/minimums/ranges etc (General Chat) - essexcanaryOTBC, Jan 10, 13:24:33
- This may help... (General Chat) - Vivid Data Shark, Jan 10, 13:03:21
  - And this, about sideways arithmetic and cryptograms (General Chat) - essexcanaryOTBC, Jan 10, 13:22:18
- And in only 8 minutes = impressive dc ! (n/m) (General Chat) - Men without hats, Jan 10, 12:54:36
- Hang on, that includes a 0. Sorry. (n/m) (General Chat) - derbyshire canary, Jan 10, 12:53:53
  - It's doing my head in! (n/m) (General Chat) - South_West_Canary, Jan 10, 13:03:14
- A5, B1, C0, D3 works. By trial & error here. (n/m) (General Chat) - derbyshire canary, Jan 10, 12:52:49

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