# The balance of friendship

Level pending

Two friends decided to test a hydraulic lift. Mike sat in a chair on the larger piston while Chris stood up in the smaller piston. The area of the larger piston is $$1.4$$ times bigger than the area of the smaller one. If Mike weighs $$1000 N$$ and Chris weighs $$750 N$$, find the mass in kg, rounded to the nearest integer, that the chair needs to have so that the lift is in equilibrium.

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