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1 January, 08:36

An emperor penguin made 460 dives in 12 hours. At this rate, how many dives did the penguin make in 3 hours?

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  1. 1 January, 08:42
    0
    Proportionality, assuming constant rate. 460 dives/12 hours = x dives/3 hours. Solve for x.
  2. 1 January, 08:52
    0
    This question is ratio based.

    So 460:12

    ? : 3

    To get from 12 to 3, you divide by 4 (3 is 1/4 of 12)

    So ...

    Divide 460 by 4 too

    460/4 = 115 dives in 3 hours
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