Solution: Assuming that X tons of mung beans are imported, the market price of mung beans is Y yuan/kg.

Then y= 16-0.0 1x,

According to the meaning, 8≤y≤ 10, namely 8 ≤16-0.01x ≤10,

Solution: 600 ≤ x ≤ 800;

A: Mung beans should be between 600 tons and 800 tons.