A train running at uniform speed covers $234$ km in $3$ hours. The distance it will cover in $5$ hours is:

A train running at uniform speed covers $234$ km in $3$ hours. The distance it will cover in $5$ hours is:
  1. $330$ km
  2. $360$ km
  3. $390$ km
  4. $420$ km

Solution

Speed $= \dfrac{234}{3} = 78$ km/h. Distance in $5$ hr $= 78 \times 5 = 390$ km.

Asked in: IMO

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