I couldn'tÂ determine the original source of today's math puzzle chestnut; I've seen it in a few places, so suffice to say that it's several years old. It's still a great puzzle and a fun challenge. Good luck:
Group the digits 1-9 into a set of three 3-digit numbers, using eachÂ digit only once in a set. The second number should be exactly DOUBLE the first number; and the third number should be exactly TRIPLE the first number. There are threeÂ FOUR* possibleÂ sets of numbers that correctly solve this puzzle;Â can you find one (or all of them)?
* see in comments!
HereÂ areÂ the SOLUTIONS.