Question

Задача Ворона летела по полям 3 ч со скоростью 48 км/ч, а потом она летела 2 ч по городу. с какой скоростью ворона летела по городу,если всего пролетела 244 км

Answer 1

1)48*3=144(км)-расстояние которое ворона пролетела по полям
2)244-144=100(км)-расстояние вороны по городу
3)100:2=50(км/ч)-скорость по городу

Answer 2

Problem Analysis

We are given that a crow flew across fields for 3 hours with a speed of 48 km/h, and then it flew across a city for 2 hours. We need to find the speed at which the crow flew across the city, given that the total distance covered by the crow was 244 km.

Solution

Let's assume the speed of the crow in the city is x km/h.

We can calculate the distance covered by the crow in the fields using the formula: distance = speed * time.

According to the problem, the crow flew across the fields for 3 hours with a speed of 48 km/h. Therefore, the distance covered in the fields is: distance_fields = 48 km/h * 3 h = 144 km.

We can calculate the distance covered by the crow in the city using the same formula. The crow flew across the city for 2 hours with a speed of x km/h. Therefore, the distance covered in the city is: distance_city = x km/h * 2 h = 2x km.

The total distance covered by the crow is given as 244 km. Therefore, we can write the equation: distance_fields + distance_city = 244 km.

Substituting the values of distance_fields and distance_city into the equation, we get: 144 km + 2x km = 244 km.

Simplifying the equation, we have: 2x km = 244 km - 144 km.

Solving for x, we get: 2x km = 100 km.

Dividing both sides of the equation by 2, we find: x km = 100 km / 2.

Therefore, the speed at which the crow flew across the city is 50 km/h.

Answer

The crow flew across the city with a speed of 50 km/h.