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27-07-2024
Mathematics

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Three sisters have the same birthday, but were born in different years. Five years ago, the oldest sister's age was 9 times the age of the youngest sister. At that time, the age of the middle sister was 4 times the age of the youngest sister. Today, the oldest sister's age is four times the age of the youngest sister. Today, how old is the oldest

sister?

Answer :

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