Question
The mass of Box U is 150 kg. The mass of Box W is 12 kg more than the mass of Box U. The mass of Box V is 70 kg less than the mass of Box W. What is the mass of Box V?
4 m

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The mass of Box U is 150 kg. The mass of Box W is 12 kg more than the mass of Box U. The mass of Box V is 70 kg less than the mass of Box W. What is the mass of Box V?