Предмет: Математика, автор: babadzhanov200

от двух причалов, расстояния между которыми 120 км , вышли одновременно навстречу друг друга два катера . один катер проходит это расстояние за 10 часов , а другой - за 15 часов . через сколько часов катера встретятся

Ответы

Автор ответа: massg

v1=120/10=12
v2=120/15=8
t=120/(8+12)=120/20=6
Ответ: 6 часов

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