Victor had 15-kilometers start on Chase. How long will it take Chase to catch Victor if Victor travels at 65 kilometers per hour and Chase travels at 95 kilometers per hour.

1/2 hour

Step-by-step explanation:

The head start distance is being reduced at the rate of (95-65) = 30 km/h. Chase will catch Victor after ...

time = distance/speed = (15 km) / (30 km/h) = 1/2 h

It will take Chase 1/2 hour to catch Victor.