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Counting triplets (Posted on 2010-03-31)

For how many ordered triplets (a, b, c) of positive integers, each less than 10 is the product abc divisible by 20?

See The Solution Submitted by Ady TZIDON

Rating: 4.0000 (1 votes)

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Puzzle Thoughts

Comment 8 of 8 |

The required number of ordered triplets is 102.

Posted by K Sengupta on 2024-03-11 10:12:53

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