问题描述：
think about math
a candy dealer makes up a mixture of 3 parts of candy costing him $0.60 a pound with 2 parts of candy costing him $0.70 a pound,2 parts of candy costing him $0.50 a pound.At what price per pound should he sell this mixture to make a profit of 25%
a candy dealer makes up a mixture of 3 parts of candy costing him $0.60 a pound with 2 parts of candy costing him $0.70 a pound,2 parts of candy costing him $0.50 a pound.At what price per pound should he sell this mixture to make a profit of 25%
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