Math

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Ted and Ben took part in the same race. When Ted finnished the race in 25 min., Ben had only run 5/8 of the distance. Ben's average speed was 75m/min SLOWER than Ted's. What is Ted's average running speed?
Speed=Ditance/time

  • Math -

    Ted's speed : x m/min
    Ben's speed : (x-75)m/min

    in 25 minutes:
    Ted's distance = 25x
    Ben's distance = 25(x-75)

    but 25(x-75) = (5/8)(25x)
    .
    .
    .
    x = 200

  • Math -

    34cvdft55

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