A car passes a landmark on a highway traveling at a constant rate of kilometers per hour. One hour later, a second car passes the same landmark traveling in the same direction at kilometers per hour. How much time after the second car passes the landmark
will it overtake the first car? Do not do any rounding

Sorry, it is not possible to answer the questions without the actual values in the problem ... how many kph (kilometers per hour) is each of the cars traveling?