Avan and a truck both drove from town a to town b. the distance
between town a and town b is 200 miles. the van left town a 1 1/2 hours
earlier than the truck. the van reached town b 2 1/2 hours before the truck.
the truck traveled at an average speed of 40 miles per hour. what was the
average speed of the van?

First we need to find out the time it took for the truck to reach town B.






Now, because the van left 1.5 hours earlier and reached the destination 2.5 hours before, it took 1 hour less the the truck to arrive.

which is the time it took for the van to arrive.

Now we use the speed equation again to work out speed.



= speed of van

Hope this helped :)