Question

Одновременно из села и города расстояние между которыми равно 250 км на встречу друг другку выезжают два офтамобиля из города автомобиль движется 60 км ч а из села скорость 40 км ч опредилите через какое время и на каком расстоянии от города встретятся автомоли

Answer 1

Согласно заданию:
S1=v1t1=40t
S2=v2t2=60t
S1+s2=250

Откуда:

100t=250
t=2,5 часа
S2=60*2,5=150 км

Answer 2

Problem Analysis

We are given that the distance between a village and a city is 250 km. Two cars start from the city and the village towards each other. The car from the city is moving at a speed of 60 km/h, while the car from the village is moving at a speed of 40 km/h. We need to determine the time it takes for the cars to meet and at what distance from the city they will meet.

Solution

To solve this problem, we can use the formula:

Time = Distance / Speed

Let's calculate the time it takes for the cars to meet:

The car from the city is moving at a speed of 60 km/h, so the time it takes for it to cover a distance of 250 km is:

Time taken by the city car = Distance / Speed = 250 km / 60 km/h

Similarly, the car from the village is moving at a speed of 40 km/h, so the time it takes for it to cover a distance of 250 km is:

Time taken by the village car = Distance / Speed = 250 km / 40 km/h

Now, let's calculate the time it takes for the cars to meet:

Total time taken = Time taken by the city car + Time taken by the village car

To find the distance from the city where the cars meet, we can use the formula:

Distance = Speed * Time

Let's calculate the distance from the city where the cars meet:

Distance from the city = Speed of the city car * Time taken by the city car

Now, let's substitute the values and calculate the time and distance:

Time taken by the city car = 250 km / 60 km/h = 4.17 hours (rounded to two decimal places)

Time taken by the village car = 250 km / 40 km/h = 6.25 hours (rounded to two decimal places)

Total time taken = 4.17 hours + 6.25 hours = 10.42 hours (rounded to two decimal places)

Distance from the city = 60 km/h * 4.17 hours = 250.2 km (rounded to one decimal place)

Therefore, the cars will meet after approximately 10.42 hours and at a distance of approximately 250.2 km from the city.

Answer

The cars will meet after approximately 10.42 hours and at a distance of approximately 250.2 km from the city.