Question

Tom drives a truck. His regular trip is a distance of 280 km. He drives at an average speed of 80 km/h.

How much longer will it take Tom to drive his regular trip?

Answer 1

It asks how much longer will it take Tom to drive his regular trip, but nothing else is stated expect the distance and average speed... so I'm gonna with that! :D

Time = Distance/Speed
Time = 280 km / 80 km/h (divide 280/80, cancel out km)
Time = 3.5 hours

It will take Tom 3.5 hours to drive his regular trip.