PQ is a tunnel. A dog sits at the distance of 5/ 11 of PQ from P. The train whistle coming from any

Answers (1)

PQ is a tunnel. A dog sits at the distance of 5/ 11 of PQ from P. The train whistle coming from any end of the tunnel would make the dog run. If a train approaches P and dog runs towards P the train would hit the dog at P. If the dog runs towards Q instead, it would hit the dog at Q. Find ratio of speed of train and dog?

  • Option 1)

    5:2

  • Option 2)

    16:5

  • Option 3)

    11:1

  • Option 4)

    4:5

  • Option 5)

    34:3

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