SOLUTION: 3. A traffic enforcer is chasing a passenger car that is speeding at 110 kph. The traffic enforcer is traveling at 120 kph and is 4 km behind the passenger car. How long will it ta

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: 3. A traffic enforcer is chasing a passenger car that is speeding at 110 kph. The traffic enforcer is traveling at 120 kph and is 4 km behind the passenger car. How long will it ta      Log On

The distance between them is decreasing at the rate of (120-110) = 10 km/h.


Hence the time for catching up is  of an hour = 4*6 = 24 minutes.