Eggs are sold in packages of six or eleven only. If Doris bought 78 eggs exactly, what could be the number of large packs Doris bought?
Choose the correct choice from the following:
A) 6.  B) 2.  C) 3.  D) 5.  E) 4.
No strategy involved. Simple question demanding fast calculation.   11x6 = 66=&gt; 78-66= 
<gadget id="calculator">78-66</gadget>
<output>12</output>
12=&gt; 12/6 is an integer   Ans A. 6.   Good luck
<result>A</result>
Eggs are sold in packages of six or eleven only. If Doris bought 78 eggs exactly, what could be the number of large packs Doris bought?