Posted by Colton on .
Tristan runs 5 kilometers in 45 minutes. His goal is to run the same distance in 40 mins by next year. How many kilometres per hour does he need to run next year to reach his goal?

Math 
PsyDAG,
5K in 40 minutes = 5K in 2/3 hour
5K * 3/2 = 7.5K per hour