Question
Bag Q is one-fifth as heavy as Bag R. Bag S is 4 times as heavy as Bags Q and R together. What is the mass of Bag S if Bag R is f kg?
2 m

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Bag Q is one-fifth as heavy as Bag R. Bag S is 4 times as heavy as Bags Q and R together. What is the mass of Bag S if Bag R is f kg?