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23 February, 08:28

A child jumping rope can jump at a speed of 280 revolutions every 2 minutes. What is the number of revolutions the child can jump in 3.5 minutes?

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Answers (2)
  1. 23 February, 10:48
    0
    490

    Step-by-step explanation:

    280:2 is 140.

    The child can do 140 revolutions in a minute.

    140 times 3.5 is 490
  2. 23 February, 11:08
    0
    490

    Step-by-step explanation:

    280/2=140

    140/minute

    140/3.5=490

    also that means 2.33333 jumps per second
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