On an order of 99 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of:
Choose one
A) 0.1% B) 0.5% C) 1% D) 5% E) 10%
Clearly, the retailer gets 1 dozen out of 100 dozens free.   Equivalent discount = 1/100 * 100= 
<gadget id="calculator">1/100 * 100</gadget>
<output>1</output>
1%.   Answer 1%) 1%
<result>C</result>
On an order of 99 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of: