SOLUTION: Lordina has to cover 4km to catch a bus ,she walks part of the distance at 3kmph and runs the rest at 5kmph,if she walks 1hour to complete the distance, for how many kilometers doe

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Question 1036610: Lordina has to cover 4km to catch a bus ,she walks part of the distance at 3kmph and runs the rest at 5kmph,if she walks 1hour to complete the distance, for how many kilometers does she walks
Found 2 solutions by jorel555, Aldorozos:
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
Let t= time running; then:
5t+3(1-t)=4
5t+3-3t=4
2t=1
t=1/2
She walks for half an hour, and then runs for 1/2 hour.
1/2 hour * 3 km/hour=3/2 kilometers walking distance!!!!!!!!!!

Answer by Aldorozos(172) About Me  (Show Source):
You can put this solution on YOUR website!
part of this problem is missing. I add one more sentence to the end of the question to make it more meaningful. How many kilometers does she walk if she walks half of the distance. In this case the answer is 2 kilometers. If she completes the distanc in 4 hours and walks 4 miles an hour to compete the distance, then the distance from home to bus station is 4 km. To cover half of the distance at speed of 4 km an hour, she has to walk for 30 minutes. Of course if she runs 5 kmh she can finish the rest of the distance I'm shorter time. She can walk 30 minutes and run 20 minutes to get to the bus.