Question

Автобус проехал 432 км за 8 часов. На сколько километров в час он должен был увеличить скорость,чтобы проехать это расстояние на 2 часа быстрее?

Answer 1

1) 8-2=6ч
2) 432÷6=72км
3) 432÷8=54км
4) 72-54=18км
ответ: на 18 км/ч

Answer 2

1)432:8=54(км/ч)скоростью автобуса
 2)432:6=72(км/ч)скоростью автобуса
3)72-54=18(км/ч)на столько нужно увеличить скоростью автобуса

Answer 3

Calculation of Speed

To determine the speed at which the bus should increase in order to cover the distance 432 km in 2 hours less than the original time of 8 hours, we can use the formula:

Speed = Distance / Time

Let's calculate the original speed of the bus:

Original Speed = 432 km / 8 hours = 54 km/h.

To find the speed at which the bus should increase, we need to calculate the new time it should take to cover the distance of 432 km:

New Time = Original Time - 2 hours = 8 hours - 2 hours = 6 hours.

Now, we can calculate the new speed:

New Speed = 432 km / 6 hours = 72 km/h.

To find the speed the bus should increase by, we subtract the original speed from the new speed:

Speed Increase = New Speed - Original Speed = 72 km/h - 54 km/h = 18 km/h.

Therefore, the bus should increase its speed by 18 km/h in order to cover the distance of 432 km in 2 hours less than the original time of 8 hours.

Please let me know if there's anything else I can help you with!