Mathematics, 09.03.2021 21:50, detrickboucicaut

Four friends are playing a "Guess my Age" game. The come up with the following clues. Dave's age is 15% of Sabrina. Luca's age is 75% of Sabrina and Rhianna is 300%
of Dave. The sum of their ages is 141. How old is Rhianna?
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Four friends are playing a "Guess my Age" game. The come up with the following clues. Dave's age is...