Peter has a lock with a three-digit code. He knows that all the digits of his code are different and that if he divides the second digit by the third and then squares his answer, he will get the first digit.
What is the difference between the largest and smallest possible codes?
Select one option, then click Submit.
42
468
499
510
541
Select an option, then submit.
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Junior Kangaroo 2015 (2015)
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