Today's problem: The train ride (1)


	Saturday, 27 february 2016

The train ride (1)

Proposed by Gabi Offline


(4 comments)	2.037 times displayed

Seara tarziu in IR-ul cu numarul 1642 de la Brasov la Bucuresti. Controlorul - pasionat de matematica, desigur - trece printr-un vagon si constata ca dorm de trei ori mai multi calatori decat cei care nu dorm. La urmatoarea trecere prin acel vagon, constata ca patru pasageri s-au trezit si acum dorm de doua ori mai multe persoane in acel moment in vagon fata de cele care nu dorm. Cati pasageri se afla in vagon?


View the Solution X = dorm₁ + nudorm₁ dorm₁ = 3 * nudorm₁ dorm₁ = dorm₂ + 4 nudorm₁ = nudorm₂ - 4 X = dorm₂ + nudorm₂ dorm₂ = 2 * (nudorm₂ + 1) (pentru ca si controlorul se afla in vagon!) X = 4 * nudorm₁ X = 3 * nudorm₂ + 2 4 * nudorm₂ - 16 = 3 * nudorm₂ + 2 nudorm₂ = 18 X = 56

Tags:

problem of the day, funny problems, funny, math, fun math exercises, train, passengers

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