Aperson jogs 4.0 km in 32 minutes , then 2.0km in 22 minutes and finally 1.0km in 16 minutes . what is the joggers average speed in km per minute?

Average speed is defined as ratio of total distance covered and  total time

now we will have

now total distance moved is

total time is given as

now average speed is given as

so its average speed is 0.1 km per minute

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with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.