Traveling at high speeds can increase fuel consumption. How much more fuel is consumed at 120 km/hr versus 100 km/hr?

• A. 20 percent
• B. 5 percent
• C. 40 percent
• D. 10 percent

Answer: (A)

Traveling at high speeds significantly affects fuel efficiency due to increased aerodynamic drag and engine strain. When comparing fuel consumption at 120 km/hr to 100 km/hr, studies indicate that fuel consumption can rise substantially due to these factors.

Driving at 120 km/hr can lead to approximately 20 percent more fuel consumption compared to traveling at 100 km/hr. This increase can be attributed to the fact that as speed increases, the force required to overcome air resistance increases exponentially. Therefore, the engine has to work harder to maintain the higher speed, resulting in a marked increase in fuel usage.

Understanding this relationship is crucial for drivers, as being aware of how speed affects fuel consumption can influence driving habits, promote efficient fuel use, and reduce overall expenses associated with fuel.