Question

Два пешехода двигались с одинаковой скоростью один прошел 20 километров а другой 12 километров Какова скорость пешехода если один затратил на дорогу на 2 часа больше чем другой

Answer 1

4 км/ч

20-12=8(км) прошёл на 2 часа больше 1-ый пешеход чем 2-ой

8:2= 4(км/ч)

Answer 2

Calculating the Speed of the Pedestrians

To calculate the speed of the pedestrians, we can use the formula: speed = distance / time.

Let's denote: - The distance covered by the first pedestrian as d1 (20 kilometers). - The distance covered by the second pedestrian as d2 (12 kilometers). - The time taken by the first pedestrian as t1. - The time taken by the second pedestrian as t2.

We are given that one pedestrian took 2 hours longer than the other. Therefore, we can express t1 in terms of t2 as: t1 = t2 + 2.

Now, we can use the formula to calculate the speed of each pedestrian.

The speed of the first pedestrian is given by: speed1 = d1 / t1. The speed of the second pedestrian is given by: speed2 = d2 / t2.

Let's calculate the speeds using the given distances and time difference.

Calculations

Using the given distances and time difference, we can calculate the speeds of the pedestrians as follows:

- For the first pedestrian: - speed1 = 20 / (t2 + 2)

- For the second pedestrian: - speed2 = 12 / t2

Now, we can proceed to calculate the specific values for the speeds of the pedestrians.