Two places P and Q are 162 km apart. A train leaves P for Q and simultaneously another train leaves Q for P. They meet at the end of 6 hours. If the former train travels 8 km/hour faster then the other, then speed of train from Q is

  • 9 1/2 km/hour
  • 10 5/6 km/hour
  • 12 5/6 km/hour
  • 8 ½ km/hour
  • Explanation:

    Speed of train Q = S km/hr

    ⇒ 162/(S+8)+S = 7 ⇒ S = 9 1/2 km/hr.

Two places P and Q are 162 km apart. A train leaves P for Q and simultaneously another train leaves
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