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Thread: BT 2 Solved

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    BT 2 Solved

    Peter decided to walk to the local waterfall, 10 miles away. At the moment he started, his dog ran off from his side and proceeded to the waterfall at a constant 8 miles per hour. As soon as the dog reached the waterfall, it started the return journey to Peter, keeping to the same speed. The dog continued this odd behaviour until Peter reached the waterfall. If Peter kept to a constant 4 miles per hour, how far did the dog run in total? PM the answer please

    Muffy has got the correct answer


     


    Solution: Peter is walking at a speed of 4 miles/hr for 10miles till the waterfall. Dividing 10/4 you get 2.5hrs>>> The dog travels at a speed of 8 miles/hr but keeping the distance same as that of Peter. So 8 times 2.5 gives "20" and thats how far the dog has ran in total.



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    The concept here is basic math thats distance=speed*time then time=distance/speed

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    hey that means i was right!!!

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    Yes u were right

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