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ConradCHESS .. 2 horns .. logic .. IM Conrad Goodman

2 horns
Horn #1 beeps 5 times a minute, horn #2 beeps 1 time a minute.
If both cycles begin at the same time, how long will it take
both horns to make their 1st simultaneously beep?

Congratulations to these solvers:
TWO solutions found by Danny Blanco, Niven Brown, Albert Frank,
Joshua Green, Steve Steppe, Luc Vingerhoets and Frank Womack.
ONE solution found by Jack Appelmans, Anne DiSante, Egon Feller,
Clara Ferrando, Brian Foote, Dave Gill, Lance Co, LW Luk,
Glenn McCorkle, Valmai Osborn and Bernard Sojka.

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