How many kms per hour to ride a bike if you travel 2km in 10 minutes?

To find the speed in kilometers per hour, first convert the travel time from minutes to hours. Since 10 minutes is one-sixth of an hour, you can calculate the speed as follows: ( \text{Speed} = \frac{2 \text{ km}}{\frac{10}{60} \text{ hours}} = 2 \text{ km} \times \frac{6}{1} = 12 \text{ km/h} ). Therefore, you would need to ride the bike at a speed of 12 kilometers per hour.