Complete the series 20, 19, 17, ...., 10, 5	Choose one:
A) 15 B) 16 C) 13 D) 14 E) 12
Explanation :   20 - 1= 
<gadget id="calculator">20 - 1</gadget>
<output>19</output>
19   19 - 2= 
<gadget id="calculator">19 - 2</gadget>
<output>17</output>
17   17 - 3= 
<gadget id="calculator">17 - 3</gadget>
<output>14</output>
14   14 - 4= 
<gadget id="calculator">14 - 4</gadget>
<output>10</output>
10   10 - 5= 
<gadget id="calculator">10 - 5</gadget>
<output>5</output>
5   Answer : Option 14
<result>D</result>
Complete the series 20, 19, 17, ...., 10, 5