On an order of 5 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of: Pick: A) 26 2/3%. B) 18 2/8%. C) 16 2/3%. D) 18 2/3%. E) 19 2/3%.
Explanation:   Clearly, the retailer gets 1 dozen out of 6 dozens free.   Equivalent discount = 1/6 * 100 = 16 2/3%.   Answer: 16 2/3%.
<result>C</result>
On an order of 5 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of: