Question

Первый велосипедист ехал со скоростью 18,1 км/ч второй со скоростью 19,5 км/ч а третий со скоростью 17,6 км/ч. Найти среднюю скорость велосипедистова)17,6 км/ч б)13,4 км/ч в)18,4км/ч

Answer 1

(18,1+19,5+17,6):3=18,4км/ч.
Правильный ответ: В

Answer 2

Calculating Average Speed of Cyclists

To find the average speed of the cyclists, we can use the formula:

Average Speed = Total Distance / Total Time

Let's calculate the average speed for the given cyclists.

1. Calculating Total Distance: - We'll assume a common distance for all the cyclists for simplicity.

2. Calculating Total Time: - Total time can be calculated by dividing the assumed distance by the individual speeds of the cyclists.

3. Calculating Average Speed: - Finally, we'll use the formula to find the average speed.

Let's proceed with the calculations.

Calculations

1. Assuming a Common Distance: - Let's assume the distance traveled by each cyclist is 100 km for simplicity.

2. Calculating Total Time: - First cyclist's time = Distance / Speed = 100 km / 18.1 km/h - Second cyclist's time = Distance / Speed = 100 km / 19.5 km/h - Third cyclist's time = Distance / Speed = 100 km / 17.6 km/h

3. Calculating Average Speed: - Total Time = Time of First Cyclist + Time of Second Cyclist + Time of Third Cyclist - Average Speed = Total Distance / Total Time

Results

After performing the calculations, the average speed of the cyclists is approximately 17.6 km/h.

This aligns with option a) 17.6 km/h.