Rates, SM-Bank 039 MC Lachlan drives his boat to an island 100 km away at an average speed of 80 km/h. How long does the trip take? 48 minutes 1 hour 15 minutes 1 hour 20 minutes 1 hour 30 minutes Show Answers Only \(B\) Show Worked Solution \(\text{Time}\) \(=\dfrac{\text{Distance}}{\text{Speed}}\) \(= \dfrac{100}{80}\) \(= 1.25\ \text{hours}\) \(=1\ \text{hour}\ 15\ \text{minutes}\) \(\Rightarrow B\)