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معماهای جالب - ماشین

ماشین

سه شنبه 21 اردیبهشت 1389 09:16 ب.ظنویسنده : محمد عرفان

 

در یك سفر ماشین شما مسافتی را با سرعت یكنواخت 50 كیلومتر در ساعت میپیماید.در سفر برگشت همین مسافت را با سرعت یكنواخت 100كیلومتر در ساعت میپیماید.سرعت متوسط این ماشین برای كل سفر چقدر است؟

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آخرین ویرایش: پنجشنبه 29 دی 1390 07:29 ب.ظ

 
سه شنبه 29 فروردین 1396 02:25 ب.ظ
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