问题标题:
教我做这个数学图是5不是4321的,POW#5:ACyclingProblemOrvilleandWilburownedabicycleshopwhichalsosoldtricycles.Oneday,theydecidedtotakeaninventoryoftheirstock.Theyeachvolunteeredtocountoneitem,whichwouldha
问题描述:
教我做这个数学图是5不是4321的,
POW#5:ACyclingProblem
OrvilleandWilburownedabicycleshopwhichalsosoldtricycles.Oneday,theydecidedtotakeaninventoryoftheirstock.Theyeachvolunteeredtocountoneitem,whichwouldhaveworkedoutjustfineifonehadcountedbicyclesandtheotherhadcountedtricycles.But,OrvilleandWilburwereveryindependentthinkers.OrvillecountedthenumberofpedalsintheshopandWilburcountedthenumberofwheels.
Orvillefoundthattheyhad144pedalsintheshop,andWilburfoundthattheyhad186wheels.Allpedalsandwheelswereactuallypartsofeitherbicyclesortricycles.Theywerejustabouttostartoverwiththeirinventorywhentheirfriend,KittyHawkins,whowasagoodproblem-solver,challengedthemtofigureoutthenumberofbicyclesandtricyclesfromtheinventorytheyhadalreadydone.
CanyouhelptheWrightbrothers?
郭飚回答:
假设:有X辆bicycle,有Y辆tricycles
则:2X+2Y=144(pedals)
2X+3Y=186(wheels)
所以:X=30(bicycle)Y=42(tricycles)
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