Question

Из одного города в противоположных направлениях одновременно вышли два туриста. скорость одного 5 км/ч, а второго 4 км/ч. Через какое время будет расстояние между ними 27 км

Answer 1

5+4=9км/ч общая скорость
27:9=3ч время через которое расстояние будет 27 км

Answer 2

Problem Analysis

Two tourists start from the same city in opposite directions. The speed of one tourist is 5 km/h, and the speed of the other tourist is 4 km/h. We need to find out how long it will take for the distance between them to be 27 km.

Solution

To find the time it takes for the distance between the two tourists to be 27 km, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the sum of the speeds of the two tourists, as they are moving in opposite directions.

Let's calculate the time it takes:

Relative Speed = Speed of Tourist 1 + Speed of Tourist 2 = 5 km/h + 4 km/h = 9 km/h

Time = Distance / Relative Speed = 27 km / 9 km/h = 3 hours

Therefore, it will take 3 hours for the distance between the two tourists to be 27 km.

Answer

The distance between the two tourists will be 27 km after 3 hours.