SOLUTION: From their home, Edwin went to his daughter's school to bring her lunch, and then he headed back home. It took him 55 minutes to drive from home to school and then back. On his t

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Question 1176608: From their home, Edwin went to his daughter's school to bring her lunch, and then he
headed back home. It took him 55 minutes to drive from home to school and then back.
On his trip to school, Edwin drove at 50 km/h and on his way home, he drove at 60 km/h.
How long did it take Edwin to reach her daughter’s school?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
 D = rt  
  50km/h(t)  =  60km/h(55/60-t)   |time in hours
  50t =  60*55/60 - 60t
   110t = 55
      t = .5hr = 30min, the time it took to drive from home to school.

 50*(.5) = 60*(25/60) = 25km 
Wish You the Best in your Studies.