Question
In a box, there are some pears and mangosteens. If 20 more mangosteens are put into the box, the percentage of pears will decrease from 80% to 40%. How many pears are there in the box?
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In a box, there are some pears and mangosteens. If 20 more mangosteens are put into the box, the percentage of pears will decrease from 80% to 40%. How many pears are there in the box?