Question
The mass of Riordan is 32 of Warren's mass. Warren's mass is 50 kg. Zeph is 12 kg lighter than Riordan. What is the mass of Zeph?
3 m

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The mass of Riordan is 32 of Warren's mass. Warren's mass is 50 kg. Zeph is 12 kg lighter than Riordan. What is the mass of Zeph?