Three people share a car for a period of one year and the mean number of kilometers traveled by each person is 125 per month How many kilometers will be travelled in a year?

To find the total number of kilometers traveled in a year, we need to multiply the mean number of kilometers traveled per month by the number of months in a year.

Mean number of kilometers traveled per month = 125
Number of months in a year = 12

Total number of kilometers traveled in a year = 125 km/month * 12 months = 1500 km/year

Therefore, the three people will travel a total of 1500 kilometers in a year.