Hello,

I have been tasked with solving the problem below and I am really stuck. If anyone can help me figure it out, you rock!

The Problem:

Alex the geologist is in the desert, 10 km from a long, straight road and 45 km from base camp. The base camp is also 10 km from the road, on the same side of the road as Alex is. On the road, the jeep can do 50 kph, but in the desert sands, it can manage only 30 kph. Alex wants to return to base camp as soon as possible. How long will the trip take?

Thanks in advance,

A desperate student