An odometer in a car has a reading of 50 km at the beginning of a trip and a reading of 125 km half an hour later. What is the average speed of the car?

A. 3.75 km/h

B. 62.5 km/h

C. 1250 km/h

D. 250 km/h

The only way to find the average speed is to divide the total distance by the total time. What is the total distance in here? I thought that I would have to add 50 to 125, then divide that by .30 which indicates half and hour, but I am not getting the correct answer. What is that I'm doing wrong?

To find the average speed of the car, you need to divide the total distance covered by the total time taken. In this case, you are given the initial reading of the odometer (50 km) and the reading half an hour later (125 km).

To find the total distance covered, you need to subtract the initial reading from the final reading. Therefore, the total distance covered is 125 km - 50 km = 75 km.

Now, let's calculate the average speed. The total time taken is given as half an hour. To convert this to hours (since average speed is typically measured in km/h), divide the total time by 60: 0.5 hours / 60 = 0.0083 hours.

Finally, divide the total distance covered (75 km) by the total time taken (0.0083 hours):

Average speed = Total distance / Total time
Average speed = 75 km / 0.0083 hours
Average speed ≈ 9018.07 km/h

Therefore, the correct answer is not provided in the options given. It seems like there may be an error in the options provided.

0.30 does not indicate a half an hour. 0.50 does. You are NOT converting to minutes.

(125-50)/0.5 = 150 km/h average speed.

That is not any of your choices. There should be a "none of the above" option.

150 km/h would exceed the speed limit in most countries.