Question

Автобус номер 1 проезжает за 24 минут 15 км. А автобус номер 2 проезжает 13 км за 20 минут. Определите, на сколько километров в час средняя скорость первого автобуса меньше, чем средняя сскорость второго

Answer 1

24 мин=2/5 часа
20 мин=1/3 часа
15:2/5=37,5 (км/ч) скорость первого
13:1/3=39 (км/ч) скорость второго
39-37,5=1,5 (км/ч)
Ответ: скорость первого на 1,5 км/ч меньше скорости второго

Answer 2

Calculation of Average Speeds

To determine the difference in average speeds between bus number 1 and bus number 2, we need to calculate the average speed for each bus.

Bus number 1: - Distance traveled: 15 km - Time taken: 24 minutes

Bus number 2: - Distance traveled: 13 km - Time taken: 20 minutes

To calculate the average speed, we can use the formula:

Average Speed = Distance / Time

For bus number 1: - Average Speed = 15 km / 24 min

For bus number 2: - Average Speed = 13 km / 20 min

Let's calculate the average speeds for both buses:

For bus number 1: - Average Speed = 15 km / 24 min = 0.625 km/min

For bus number 2: - Average Speed = 13 km / 20 min = 0.65 km/min

Difference in Average Speeds

To determine the difference in average speeds between the two buses, we subtract the average speed of bus number 1 from the average speed of bus number 2:

Difference in Average Speeds = Average Speed of Bus 2 - Average Speed of Bus 1

Let's calculate the difference:

Difference in Average Speeds = 0.65 km/min - 0.625 km/min = 0.025 km/min

Therefore, the average speed of the first bus is 0.025 km/min slower than the average speed of the second bus.

Please note that the units used for the average speed calculation are kilometers per minute. If you would like the average speeds in a different unit, please let me know.