Another florist has 16 yellow mums and 40 white carnations. Which question can be answered by finding the GCF of 16 and 40?

The greatest common factor of 16 and 40 tells how many equal groups can be made using all the flowers, with the same number of mums and the same number of carnations in each group. Since GCF(16, 40) = 8, the question about the greatest number of identical groups is the one answered by finding the GCF. Choice B is correct.

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