Two trains are traveling away from the same starting point. train A is traveling at 45 MPH for one hour, and Train B is traveling at 65 MPH for 2 hours, how far apart are the trains after 30 minutes?

Question

Two trains are traveling away from the same starting point at different speeds, train A is traveling at 45 MPH for one hour, and Train B is traveling at 65 MPH for 2 hours, how far apart are the trains after 30 minutes?

Answer 1

(1/2)(45+65)= .5x110 = 55 miles apart after 30 minutes = 1/2= .5 hour

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assuming they are going in opposite directions, 180 degrees apart

IF going in the same direction

then .5(65-45) = 20/2 = 10 miles apart

if in any other directions, then somewhere between 10 and 55 miles apart