Mathematics, 26.07.2019 17:00, israel8471

Andrei weighs 32 kg, which is 4/7 of the weight of his older sister and 2/5 of the weight of his father. the mother’s weight is 7/8 of the father’s weight. can they all, together, go into an elevator that can hold 300 kg if they also have to take their 17 kg dog?

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Andrei weighs 32 kg, which is 4/7 of the weight of his older sister and 2/5 of the weight of his fat...