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SASMO 2016 Secondary 4 (Grade 10) Contest Question 22

SASMO · SASMO 2016 Secondary 4 (Grade 10) Contest

Question 22

An “Interesting Pair" is a pair of two-digit positive integers such that their product
is the same even when both of them are reversed, and all the digits in a pair are
distinct. For example, 26x93 = 62x39= 2418 and 36x84 =63 x 48=
3024; (26,93), (62,39), (36,84), (63,48) are interesting pairs. Determine all the
3-digit products of the interesting pairs.
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Question illustration