perplexus.info :: Numbers : Cross Product Quickie

Cross Product Quickie (Posted on 2023-04-24)

+---+     +---+     +---+
|   |  X  |   |  X  |   | = 54
+---+     +---+     +---+
  X         X         X
+---+     +---+     +---+
|   |  X  |   |  X  |   | = 120
+---+     +---+     +---+  
  X         X         X
+---+     +---+     +---+
|   |  X  |   |  X  |   | = 56
+---+     +---+     +---+
  =         =         =
 96        180       21

Use each of the digits from 1 to 9 exactly once to satisfy this cross product puzzle.
How fast can you come up with the solution using only p&p (no calculator)?

Extra Challenge: Can you come up with the solution in your mind (without using p&p)?

See The Solution Submitted by K Sengupta

Rating: 3.3333 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

No Subject

| Comment 1 of 6

no way

it took me below 9 minutes to understand that there is a mistake.

I have a perfect solution no calculator, no P & P.

. Replace. 96 by 90

Place 7 in the lowest right corner....

The rest is easy

nbi I have used 9 playing cards 1 to. 9. and a timer

Posted by Ady TZIDON on 2023-04-24 08:30:34

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