A car travels 80 kilometers in 2.5 hours. What is its speed in kilometers per hour?

• A. 30.0
• B. 32.0
• C. 34.0
• D. 36.0

Answer: (B)

To find the speed of the car in kilometers per hour, you need to use the formula for speed, which is the total distance traveled divided by the total time taken. In this case, the car travels a distance of 80 kilometers in 2.5 hours.

To calculate the speed:

1. Total Distance: 80 kilometers

2. Total Time: 2.5 hours

Using the formula:

[

\text{Speed} = \frac{\text{Distance}}{\text{Time}} = \frac{80 \text{ kilometers}}{2.5 \text{ hours}}

]

Now, dividing 80 by 2.5:

[

80 \div 2.5 = 32 \text{ kilometers per hour}

]

Thus, the speed of the car is 32 kilometers per hour, which aligns with the correct answer. This calculation shows a solid understanding of how to determine speed when given distance and time.

While other options may seem close, they do not accurately represent the result of this specific calculation and reflect a misunderstanding of the operations involved in computing the speed.