A Doctor must see 35 patients in a day. At 4 PM the doctor had seen 21 of his patients. What percentage of patients had he not seen ?  Choose the correct choice from the following options:
A) 40 %
B) 60 %
C) 50 %
D) 33 %
E) None of these
Patients not seen = 35 - 21= 
<gadget id="calculator">35 - 21</gadget>
<output>14</output>
14   Patients not seen percentage= (14/35 x 100) %   = 40%   40 %nswer : 40 %
<result>A</result>
A Doctor must see 35 patients in a day. At 4 PM the doctor had seen 21 of his patients. What percentage of patients had he not seen ?