Question

Туристы прошли по реке на спортивных байдарках половину намеченного пути и еще 9 км . Оставшийся путь они могут пройти на байдарках за 3 часа со скоростью 6 км\ч. Узнай весь путь

Answer 1

(3*6+9)*2=27*2=54 (км). Ответ: 54 км.

Answer 2

The details of the tourist's river journey:

The tourists passed half of the planned route on sports kayaks and another 9 km. So in total they have traveled half the planned route + 9 km so far.

They can pass the remaining distance in 3 hours at a speed of 6 km/h.

To calculate the total planned route:

- Distance already traveled = Half planned route + 9 km - Let's call the total planned route x - Then half the planned route is x/2 - We know: x/2 + 9 = Distance already traveled - So: x/2 + 9 - x/2 = Remaining distance - x = Distance already traveled + Remaining distance - x/2 + 9 - x/2 + (Remaining distance/6) = 3 - x/2 + 9 + (Remaining distance/6) = 3 - x/2 + 9 = 3 - (Remaining distance/6) - x/2 = 3 - 9 - (Remaining distance/6) - x/2 = -6 - (Remaining distance/6) - x/2 = -6 - Remaining distance/6 - x = -12 - 2*(Remaining distance) - x = -12 + 2*(x/2 - (x/2 + 9)) - x = -12 + 2*(x/2 - x/2 - 9) - x = -12 + 2*(-9) - x = -12 - 18 - x = -30 - Total planned route = 30 km