An animal boarding house has 15 cats and 12 dogs

MATHEMATICS · Subjective · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation

Problem

An animal boarding house has 15 cats and 12 dogs. The mean age of the 15 cats is 2.4 years old, the mean age of the 12 dogs is 3 years old. Calculate mean age of all 15 cats and 12 dogs.

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