Question

question 3. what is the total distance covered, and what was the drivers average speed for the entire journey? a. total distance: 85 km, average speed: 28.33 km/h b. total distance: 90 km, average speed: 30 km/h c. total distance: 95 km, average speed: 31.67 km/h d. total distance: 100 km, average speed: 33.33 km/h

Explanation:

Step1: Calculate total distance

Add up the distances: $25 + 20+30 + 15=90$ km

Step2: Calculate total time in hours

Add up the times in minutes: $45+40 + 60+35 = 180$ minutes. Convert to hours: $\frac{180}{60}=3$ hours

Step3: Calculate average speed

Use the formula $v=\frac{d}{t}$, where $d$ is distance and $t$ is time. So, $v=\frac{90}{3}=30$ km/h

Answer:

B. Total distance: 90 km, Average speed: 30 km/h