Question

Solving a word problem involving rates and time conversion

A car travels at an average speed of 52 miles per hour. How long does it take to travel 247 miles?

Answer 1

It takes 4.75 hours(4 hours and 45 minutes) to travel 247 miles.

Explanation:

This question is solved by rates, using a rule of three.

52 miles in one hour. How many hours for 247 miles?

1 hour - 52 miles

x hours - 247 miles

Applying cross multiplication:

`52x = 247`

`x = (247)/(52)`

`x = 4.75`

It takes 4.75 hours = 4 hours and 3/4*60 = 45 minutes to travel 247 miles.