Question

a remote control car races straight down the street at 26 miles per hour. Two hours later, a second remote control car races straight down the same street at 52 miles per hour in pursuit of the first car. From the moment the first care started, how many hours will it take thje second car to catch up to the first? What type of problem best exemplifies this question?

Answer 1

• 4 hours

Explanation:

Given

• Speed of the first car = 26 mph
• Speed of the second car = 52 mph
• Time difference = 2 hours
• The first car makes 2*26 = 52 miles before the second car starts racing

Let the time the second car races before catching the first car be x

The equation:

• 26x + 52 = 52x
• 52x - 26x = 52
• 26x = 52
• x = 2

It takes 2 hours for the second car to catch the first car.

It takes 2 + 2 = 4 hours from the moment the first car started the race.