Question

Отношение скорости пешехода к скорости мотоциклиста равно 2/7 . пешеход проходит 4 км за один час . сколько километров проедет мотоциклист за 4 часа?

Answer 1

пешеход получается:2 а мото/лист:7

4:2=2 - пропорциональность

7*2=14 - сколько км в час проходит м/т

14*4=56 км

Ответ:56 км проедит м/т за 4 часа 

Answer 2

Calculation of the Distance Traveled by the Motorcyclist

To calculate the distance traveled by the motorcyclist, we need to use the given information about the pedestrian's speed and distance.

According to the question, the ratio of the pedestrian's speed to the motorcyclist's speed is 2/7. Additionally, the pedestrian covers a distance of 4 km in one hour.

To find the distance traveled by the motorcyclist in four hours, we can use the following steps:

1. Calculate the motorcyclist's speed: - Let's assume the motorcyclist's speed is x km/h. - Since the ratio of the pedestrian's speed to the motorcyclist's speed is 2/7, we can set up the equation: (2/7) = 4/x. - Solving this equation will give us the motorcyclist's speed.

2. Calculate the distance traveled by the motorcyclist in four hours: - Once we have the motorcyclist's speed, we can multiply it by four to find the distance traveled in four hours.

Let's calculate the motorcyclist's speed and the distance traveled.

Calculation:

1. Calculating the motorcyclist's speed:

- Let's assume the motorcyclist's speed is x km/h. - Using the equation (2/7) = 4/x, we can solve for x.

Solving the equation:

   (2/7) = 4/x
   

Cross-multiplying:

   2x = 4 * 7
   

Simplifying:

   2x = 28
   

Dividing both sides by 2:

   x = 28/2
   x = 14
   

Therefore, the motorcyclist's speed is 14 km/h.

2. Calculating the distance traveled by the motorcyclist in four hours:

- Now that we know the motorcyclist's speed is 14 km/h, we can multiply it by four to find the distance traveled in four hours.

   Distance = Speed * Time
   Distance = 14 km/h * 4 hours
   Distance = 56 km
   

Therefore, the motorcyclist will travel 56 km in four hours.

Answer:

The motorcyclist will travel 56 km in four hours.

Please note that the calculations provided are based on the given information and assumptions made.