Question

В 11 часов из города A в город B выехала грузовая машина со скростью 60км ч .ЧЕРЕЗ 1ч 30мин навстречу ей из города В выехала легковая машина со скоростью 100 км ч .ОНИ встретились в 14ч.К КАКОМУ ГОРОДУ БЛИЖЕ ОНИ ВСТРЕТАЛИСЬ

Answer 1

За 1 час 30 минут = 1,5 часа первая машина проехала 60*1,5 = 90 км. В этот момент на часах было 12:30. До 14:00 оставалось 1,5 часа. За эти 1,5 часа перва проехала ещё 90 км, вторая 100*1,5 = 150 км. Всего первая проехала 90+90 = 180 км, вторая 150 км. Получается, что они встретились ближе к городу B.

P.S. На всякий случай: рассстояние между городами 180+150 = 330 км.

Answer 2

Problem Analysis

We have a situation where a truck and a car are traveling towards each other from two different cities, A and B. The truck has a speed of 60 km/h, and the car has a speed of 100 km/h. They meet after 1 hour and 30 minutes, and we need to determine which city they met closer to.

Solution

To solve this problem, we can use the formula: distance = speed × time.

Let's assume that the distance between cities A and B is D km.

The truck traveled for 1 hour and 30 minutes, which is equivalent to 1.5 hours. Therefore, the distance traveled by the truck is 60 km/h × 1.5 h = 90 km.

Similarly, the car traveled for 1 hour and 30 minutes, which is also equivalent to 1.5 hours. Therefore, the distance traveled by the car is 100 km/h × 1.5 h = 150 km.

Since they met after traveling for 1 hour and 30 minutes, the total distance between the two cities is the sum of the distances traveled by the truck and the car: 90 km + 150 km = 240 km.

Now, we need to determine which city they met closer to. To do this, we can compare the distances traveled by each vehicle with respect to the total distance between the cities.

If the truck traveled 90 km and the car traveled 150 km, we can calculate the ratio of the distance traveled by the truck to the total distance: 90 km / 240 km = 0.375.

Similarly, we can calculate the ratio of the distance traveled by the car to the total distance: 150 km / 240 km = 0.625.

Comparing these ratios, we can see that the car traveled a greater proportion of the total distance. Therefore, they met closer to city B.

Answer

They met closer to city B.