Question

С двух туристических баз,расстояние между которыми 27 км,одновременно на встречу друг другу вышли два отряда.Первый отряд двигался со скоростью 4 км/ч,а второй-со скоростью 5 км/ч.Через сколько часов отряды встретятся?

Answer 1

4+5=9 км/час скорость сближения отрядов                                                        27:9=3 ч (через 3 часа отряды встретятся)

Answer 2

Problem Analysis

The problem involves two groups moving towards each other from two different locations. The distance between the two locations is 27 km. The first group is moving at a speed of 4 km/h, and the second group is moving at a speed of 5 km/h. We need to find out how many hours it will take for the two groups to meet.

Solution

To solve this problem, we can use the formula: time = distance / relative speed

Where: - distance is the total distance between the two groups (27 km) - relative speed is the combined speed of the two groups when moving towards each other (4 km/h + 5 km/h)

Calculation

Using the formula, we can calculate the time it will take for the two groups to meet:

time = distance / relative speed

time = 27 km / (4 km/h + 5 km/h)

time = 27 km / 9 km/h

time = 3 hours

So, the two groups will meet after 3 hours.

[[6 #]] provides a similar problem-solving approach for finding the time it takes for two groups to meet when moving towards each other.