Question
A fruit stall had 3 times as many pears as mangosteens. After 15 pears were sold, the number of mangosteens became twice the number of the remaining pears. How many pears were there at the fruit stall at first?
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A fruit stall had 3 times as many pears as mangosteens. After 15 pears were sold, the number of mangosteens became twice the number of the remaining pears. How many pears were there at the fruit stall at first?