On an order of 3 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of:
Select:	A) 20%	B) 25%	C) 30%	D) 35%	E) 40%
Clearly, the retailer gets 1 dozen out of 4 dozens free.   Equivalent discount = 1/4 * 100= 
<gadget id="calculator">1/4 * 100</gadget>
<output>25</output>
25%.   Answer 25%) 25%
<result>B</result>
On an order of 3 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of: