Question 935878
Joe took 3 hours to drive from town A to town B and drove back using the same route in 2 hours. Given that he travelled 30km/h faster in his return journey from town B, how far was town A from town B? 
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let x=speed from town A to town B
x+30=speed of return journey
distance=travel time*speed(same for both directions)
3x=2(x+30)
3x=2x+60
x=60
distance=3x=180
how far was town A from town B? 180 miles