Question

Brenda drove to her friend's house and back. On the trip there she drove 30 kmh and on the return trip she went 20 km/h. How long did the trip there take if the return trip took three hours?

Answer 1

Answer: 2 hours

Explanation:

If the return trip took 3 hours and she went 20 km/hr she would be going 60 miles because you can use the formula
`v*t=d` to figure it out. Now you have to figure out how much time it took for her to drive 60 miles going 30 miles an hour. Use the formula
`(d)/(v) =t` and you will figure out that she is driving for 2 hours.