The speed of a truck is 50 mph and the speed of a car is 60 mph. They are 385 miles apart and start moving towards each other. How much time does it take them to meet?
To find the time it takes for the truck and car to meet, we can use the formula: time = distance / speed.
Let's call the time it takes for them to meet "t."
The distance the truck travels is the same as the distance the car travels (since they are both moving towards each other), which we can call "d."
Since the truck's speed is 50 mph and the time it takes for them to meet is "t," the distance the truck travels is d = 50t.
Similarly, the distance the car travels is d = 60t.
Since the total distance between them is 385 miles, we can equate the distances traveled by the truck and car to the total distance: 50t + 60t = 385.
Combining like terms, we get 110t = 385.
Dividing both sides by 110, we find that t = 3.5.
Therefore, it takes them 3.5 hours to meet.