Question

Two planes which are 3540 miles apart fly toward each other. Their speeds differ by 35 mph. If they pass each other in 4 hours, what is the speed of each?

Answer 1

3540 miles divided by 4 hours is 885, divided by 2 planes is 442.5 mph if their speeds differ by 35 miles per hour, split the difference: 17.5 + 442.5=460 mph for plane A, 442.5-17.5= 425 for plane B. So one is flying at 460 mph and the other at 425 mph