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11 March, 16:17

If a revolving restaurant can rotate 270° in 45 minutes, how long does it take for the restaurant to make a complete revolution?

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  1. 11 March, 16:20
    0
    270/360 = 0.75 = 3/4 of a complete revolution

    45 minutes = 3/4 of an hour

    so it is doing 1/4 of a revolution every 1/4 hour

    so it would take 1 hour to do a complete revolution
  2. 11 March, 16:23
    0
    The answer is one hour. 360-270=90 90 is a fourth of 360. 45 minutes is 3/4 of an hour so yeah
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