Question

A police officer records the speeds of vehicles on a road. What percent of the vehicles were traveling between 41 and 45 miles per hour?

Answer 1

28%

Explanation:

Here is the missing table from the question:

Speed (mph) Number of Vehicles

36-40 2

41-45 14

46-50 18

51-55 12

56-60 4

Given: A police officer records the speeds of vehicles on a road.

Now, finding the percent of vehicles traveling between 41 and 45 miles per hour.

First, calculating the total number of vehicles.

Total vehicles=
`2+14+18+12+4= 50`

Vehicles travelling at speed of 41-45 mph= 14

Formula; percent of vehicles traveling between 41 and 45 mph=
`(vehicles\ travelling\ 41-45\ mph)/(Total\ number\ of\ vehicles) * 100`

⇒ Percent of vehicles traveling between 41-45 mph=
`(14)/(50) * 100= 14* 2`

∴ Percent of vehicles traveling between 41-45 mph is 28%