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27 September, 10:37

The diameter of a small gear is 16cm. This is 2.5 cm more than 1/4 of the diameter of a larger gear. What is the diameter of the larger g! ear

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  1. 27 September, 10:51
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    The problem statement tells us ...

    16 cm = 2.5 cm + (1/4) * (large gear diameter)

    We can subtract 2.5 cm and multiply by 4 to find the large gear diameter.

    13.5 cm = (1/4) * (large gear diameter)

    54 cm = (large gear diameter)

    The diameter of the larger gear is 54 cm.
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