If u r genius solve it:-
40 * 14 = 11
30 * 13 = 12
20 * 12 = 6
10 * 11 = 2
9 * 10 = ?	Choose the correct choice from the following options
A) 2 B) 4 C) 6 D) 9 E) 10
Logic :   40*14= 
<gadget id="calculator">40*14</gadget>
<output>560</output>
560=5+6+0= 
<gadget id="calculator">5+6+0</gadget>
<output>11</output>
11   30*13= 
<gadget id="calculator">30*13</gadget>
<output>390</output>
390=3+9+0= 
<gadget id="calculator">3+9+0</gadget>
<output>12</output>
12   20*12= 
<gadget id="calculator">20*12</gadget>
<output>240</output>
240=2+4+0= 
<gadget id="calculator">2+4+0</gadget>
<output>6</output>
6   10*11= 
<gadget id="calculator">10*11</gadget>
<output>110</output>
110=1+1+0= 
<gadget id="calculator">1+1+0</gadget>
<output>2</output>
2   So 9*10= 
<gadget id="calculator">9*10</gadget>
<output>90</output>
90=9+0= 
<gadget id="calculator">9+0</gadget>
<output>9</output>
9   Answer : 9
<result>D</result>
If u r genius solve it:-
40 * 14 = 11
30 * 13 = 12
20 * 12 = 6
10 * 11 = 2
9 * 10 = ?