Question
The total mass of 2 tarts and 6 shortbreads is 400 g. Each tart has a mass twice as much as a shortbread. Find the mass of a shortbread.
4 m

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The total mass of 2 tarts and 6 shortbreads is 400 g. Each tart has a mass twice as much as a shortbread. Find the mass of a shortbread.