Mathematics, 09.03.2021 21:10, genyjoannerubiera

2/3 of a hippo's life is spent under water, the rest of their life out of water is separated into grazing, sleeping, and socialising in the ratio of 4 : 7 : 1. the average life of a hippo is 45 years, how long will it spend doing each of these activities?

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2/3 of a hippo's life is spent under water, the rest of their life out of water is separated into gr...