Math

A bicycle travels 42 meters for every 20 revolutions of the wheel. How many revolutions would the wheel make in a kilometer?

asked by Anonymous
  1. Maths

    posted by Tarefa
  2. use a simple ratio
    let the number of revolutions in 1 km be n

    n/1000 = 20/42
    x = 1000(20/42) = 10000/21 or appr 476.2 revolutions

    posted by Reiny

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