С2 аэродромов расстояние между которыми 1495 км вылетели навстречу друг другу два вертолёта первый вылетел на 3 часа раньше и летел со скоростью 215 км в час с какой скоростью летел второй если вертолет и встретились через 2 часа после его вылета

Первый вертолет вылетел на 3 часа раньше а встретились они через 2 часа после вылета второго: значит
5часов×215км=1075км пролетел первый
1495-1075=420км это пролетел второй
420км÷2часа его полета=210км/ч скорость второго вертолета

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