Since the cars must meet at the starting point, let's look at the times that the two cars take to make a lap.
Car A takes 2 + 2/3 minutes
Car B takes 2 + 5/12 minutes.
The common denominator for these two amounts is 12; so it will take 12 laps for the cars to meet at the
Using this, you can find the time.
b(ii) If it takes 12 laps, you can calculate the total distance for these laps.