City A is 60 miles East of City B. A car leaves city a traveling East at 30 mph and at the same time a car lea

Question

City A is 60 miles East of City B. A car leaves city a traveling East at 30 mph and at the same time a car leaves city B traveling East at 60 mph. How long will it take the car leaving from city B to catch the car leaving from city A.

Show all work. Can someone please help. Thanks

Answer 1

City B

2nd car travels East at 60 mph

City A

1st car travels East at 30mph

Time Elapsed   CAR      Where?

1 hour              car 2       reaches City A

1 hour              car 1       travels 30 miles East

2nd hour           car 1      travels 60 miles east

2nd hour           car 2      also travels 60 miles and meets up with car 1

so 2 hours is the answer.

mph = miles per hour