P, Q, and R start their journeys at 8 am, 9 am, and 10 am respectively. The speeds of P, Q, and R are in the ratio x : 1.25 x : 0.5 x x : 1.25x : 0.5x...
Question
P, Q, and R start their journeys at 8 am, 9 am, and 10 am respectively. The speeds of P, Q, and R are in the ratio respectively. After 4 hours from Q's start, Q meets P, and both immediately begin returning to their starting points. At what time will Q meet R?