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### Question Asked by a Student from EXXAMM.com Team

** Q 1474612556. ** `P` and `Q` are `27` km away. Two trains will having speeds of `24` km/h and `18` km/h respectively start simultaneously from `P` and `Q` and travel in the same direction. They meet at a point `R` beyond `Q`. Distance `QR` is

#### HINT

If the trains meet after t h.
Relative speed of train = (24 -18) = 6 km/h
⇒ Distance = 27
∴ t = 27/6 = 9/2 h