two friends live 525 miles apart They start driving toward e

two friends live 525 miles apart. They start driving toward each other at the same time. Jan drives at a speed of 45 mph and Gerry drives at a speed of 60mph. How many hours did it take to meet?

Solution

d=rt
525=(45+60)t
525=105t
t=525/105
t=5 hours it will take them to meet.
Proof:
525=(45+60)*5
525=105*5
525=252