Question

Katie is determining the time it will take to travel 405 miles by train. The train travels 90 miles per hour.

A)1.5 hours
B)4.5 hours
C) 4 hours
D) 3.8 hours

Answer 1

Option B - 4.5 hour

Explanation:

Given : Katie travel 405 miles by train. The train travels 90 miles per hour.

To find : Determining the time ?

Solution :

The distance covered by train is 405 miles.

The speed of the train is 90 miles per hour.

The time taken is given by,

`\text{Time}=\frac{\text{Distance}}{\text{Speed}}`

`\text{Time}=(405)/(90)`

`\text{Time}=4.5`

The time taken by train is 4.5 hour.

Therefore, Option B is correct.

Answer 2

distance = rate * time

405 miles = 90 miles/hour * time

divide each side by 90

405/90 = time

4.5 hours = time

Choice B