A travelled from Town P to Q. B travelled from Town Q to P. They started at the same time. They met each other 80km from Q. When A reached Town Q, he immediately travelled back to Town P. When B reached Town P, he also immediately travelled back to Town Q. They met each other 60km from P. What was the distance from Town P to Town Q?
Solution (not drawn to scale) by Lim Li:
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