A car travelling at a constant speed travels 30 km in 15 minutes. How far t travel in 2 hours 12 minutes if it continues at the same constant speed?

First, let's calculate the speed of the car. If the car travels 30 km in 15 minutes, this translates to 120 km in 1 hour (since 15 minutes is a quarter of an hour). Now, to find the distance traveled in 2 hours and 12 minutes, we need to convert that time into hours: 2 hours and 12 minutes equals 2.2 hours (which is 2 + 12/60). Now, multiply the speed by the time: 120 km/h * 2.2 hours = 264 km. Therefore, the car would travel 264 km in 2 hours and 12 minutes. Now, if you’re looking to do this with more ease in the future, remember that keeping the units consistent saves time! And always convert minutes to a decimal before performing any calculations for accuracy—it's a common pitfall to get mixed up there!