Question

If it takes 9 minutes to run one mile, how long would it take to run 18 miles?​

Answer 1

Given:

Time taken to run 1 mile = 9 minutes

To Find:

Time taken to run 18 miles.

Calculation:

- Speed = Distance/Time

⇒ Speed = 1/9 miles/min

- Total Distance run = 18 miles

- Total time taken = Total Distance/Speed

⇒ Total time taken = 18/(1/9)

⇒ Total time taken = 18 × 9

⇒ Total time taken = 162 minutes or 2 hour 42 minutes

- So, it would take 162 minutes (or 2 hour 42 minutes) to run 18 miles.

Answer 2

The runner will take 2 hours 42 minutes to cover 18 miles at the given speed.

Step-by-step explanation:

Given: It takes 9 minutes to run a mile.

Find: Time taken to run 18 miles.

Solution:

Speed = Distance / Time = 1 mile / 9 minutes

Speed of the runner = 1/9 miles per minute.

Now to calculate the time required to cover a distance of 18 miles, we can use the formula Distance = Speed * time.

Here we have found that speed = 1/9 miles per minute. Distance = 18 miles. Let's substitute.

Time = Distance / speed = 18 / (1/9) = 18 * 9 / 1 = 162 minutes

The runner will take 2 hours 42 minutes to cover 18 miles at the given speed.