Equations to solve in your head:
6,751x + 3,249y = 26,751
3,249x + 6,751y = 23,249
Is this a joke? Not if you can multiply the first equation by 6,751 and the second by 3,249 in your head, and not if you use a second, simpler method.
Puzzle provided by Kordemsky: The Moscow Puzzles (Dover)
Problem and solution
Equations to solve in your head:
6,751x + 3,249y = 26,751
3,249x + 6,751y = 23,249
Is this a joke? Not if you can multiply the first equation by 6,751 and the second by 3,249 in your head, and not if you use a second, simpler method.
Puzzle provided by Kordemsky: The Moscow Puzzles (Dover)
Problem and solution
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