Question 545622
motorcycle speed = 50 mph
car = 30 mph

travelling same direction
so effective speed = 50-30=20

head start 3 hours
distance = 3*30 =90 miles
t=d/r

catch up time = 90/20 
=4.5 hours

speed of motorcycle = 50 mph. 
time = 4.5 hours
so distance = 50*4.5 = 225 miles. from start
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