Question

автобус проехал 3 часа. со скоростью 54км/ч. выяснилось что он проехал 9/14 всего расстояния. сколько всего километров он должен проехать?с какой скоростью надо ехать автобусу,чтоб проехать остаток дороги за 2 часа.

Answer 1

1)54*3=162 (км) проехал автобус2) 9/14=162, то162:9*14= 252(км) весь путь
3) 252-162=90 (км) осталось проехать
4) 90:2=45(км/ч) необходимая скорость
Ответ автобусу осталось проехать 90 км со скорость 45 км/ч

Answer 2

Calculating Total Distance and Required Speed

To calculate the total distance the bus should travel and the speed it needs to maintain to cover the remaining distance in 2 hours, we can use the information provided.

The bus has traveled for 3 hours at a speed of 54 km/h and covered 9/14 of the total distance.

First, let's calculate the total distance the bus should travel.

The formula to calculate distance is: Distance = Speed × Time

Given: - Time = 3 hours - Speed = 54 km/h - Fraction of total distance covered = 9/14

Using the formula, we can calculate the total distance: Distance = Speed × Time Distance = 54 km/h × 3 hours Distance = 162 km

So, the total distance the bus should travel is 162 km.

Now, let's calculate the speed the bus needs to maintain to cover the remaining distance in 2 hours.

The remaining distance is: Remaining distance = Total distance - Distance covered Remaining distance = 162 km - (9/14) × 162 km Remaining distance = 162 km - 108 km Remaining distance = 54 km

The time available to cover the remaining distance is 2 hours.

The formula to calculate speed is: Speed = Distance / Time

Using the formula, we can calculate the required speed: Speed = 54 km / 2 hours Speed = 27 km/h

So, the bus needs to maintain a speed of 27 km/h to cover the remaining distance in 2 hours.

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