Question
Packet Q is one-fifth as heavy as Packet R. Packet S is 2 times as heavy as Packets Q and R together. What is the mass of Packet S if Packet R is j kg?
2 m

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Packet Q is one-fifth as heavy as Packet R. Packet S is 2 times as heavy as Packets Q and R together. What is the mass of Packet S if Packet R is j kg?