A neighborhood grocer sells a mix of chocolate and carob candy. The chocolate cost $2.70 a pound and the carob costs $2.55 a pound. If 20 pounds of the chocolate and 40 pounds of the carob candy are used, what is the cost per pound of the mixture?

• $ 2.6
  Cost per pound =[ (20*2.7) + (40*2.55)] / (20+40) =156/60 =2.6
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