Question
Charlie had three bags of red beans, S, T and U and the mass of each bag of red beans was in the ratio 5 : 4 : 5. Charlie decided to transfer 10% of red beans from Bag S into Bag T and 90% of red beans from Bag U into Bag T. Given that the mass of Bag T was 36 kg in the end, how many kilograms of red beans were transferred into Bag T?
5 m

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Charlie had three bags of red beans, S, T and U and the mass of each bag of red beans was in the ratio 5 : 4 : 5. Charlie decided to transfer 10% of red beans from Bag S into Bag T and 90% of red beans from Bag U into Bag T. Given that the mass of Bag T was 36 kg in the end, how many kilograms of red beans were transferred into Bag T?