Question 1155948: Each morning, sandra leaves her house for work at the same time. In the morning there is no traffic, so she travels at an average speed of 60 km/hr and get to work in 40 minutes. However, when she goes home in the evening there is a lot of traffic and it takes 75 minutes to get home. what is her average speed on the way home?
Can anyone please help with this question?
Thank you
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617)   (Show Source):
Answer by ikleyn(52781)  (Show Source):
You can put this solution on YOUR website! .
The distance from home to work is 60*(2/3) = 40 miles.
Here the ratio  represents 40 minutes, that are of an hour.
The way back takes 75 minutes, or 1 hour and 15 minutes, i.e.  hours.
Therefore, the average speed driving back from work to home is  =  = 8*4 = 32 miles per hour.
ANSWER. The average speed driving back from work to home is 32 miles per hour.
Solved, explained, calculated and completed.
Enjoy (!)
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Ignore the solution by @josgarithmetic, giving you an answer   mph. It is TOTALLY WRONG !
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From day to day and from year to year, so called "tutor" @josgarithmetic deceives the visitors of this forum,
giving them wrong solutions.
From day to day, the visitors applaud him, demonstrating total absence of common sense and elementary basic knowledge.
Dear visitors, he will continue deceive you every day, until you applaud him (!)
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