medium · GMAT Quant

A wholesaler sells an inventory component to a retailer at a price that is 25 percent greater than the original production cost. The retailer then sells the component to a customer at a price that is 20 percent greater than the price the retailer paid the wholesaler.

If a customer pays $180 for the component, what was the original production cost?

  1. $150
  2. $124
  3. $144
  4. $135
  5. $120

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