Question
The total mass of Grace, Mason and Jeremiah is 144 kg. Mason's mass is 10 kg more than Grace's and 20 kg more than Jeremiah's. Find the total mass of Grace and Jeremiah.
4 m

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The total mass of Grace, Mason and Jeremiah is 144 kg. Mason's mass is 10 kg more than Grace's and 20 kg more than Jeremiah's. Find the total mass of Grace and Jeremiah.