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15 October, 07:16

The ratio of the number of adults to the number of children in a library is 12:5. If there are 45 children in the library, how many adults are there at the library?

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Answers (2)
  1. 15 October, 07:40
    0
    The answer is 108.

    Step-by-step explanation:

    This can be solved with a simple proportion. 5/12 = 45/1. For 5 to become 45, you need to multiply by 9. You do the same to the denominator. 12 times 9 is 108.
  2. 15 October, 10:29
    0
    The answer would be 108. 108:45 can be simplified to 12:5.
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