4+7=1281
4+6=1240
8+3=1241
9+9=?
Pick one.
A) 1717  B) 1818  C) 1817  D) 1718  E) 1854
x+y = ABCD   BC = x*y   AD=x+y   e.g. 4+7   BC=4*7= 
<gadget id="calculator">4*7</gadget>
<output>28</output>
28   AD=4+7= 
<gadget id="calculator">4+7</gadget>
<output>11</output>
11   ABCD= 1281   ..   .   similarly   9+9=1818   4+7=1281   4+6=1240   8+3=1241   9+9=1818   ANSWER:1818
<result>B</result>
4+7=1281
4+6=1240
8+3=1241
9+9=?