1300 boys and 700 girls are examined in a test; 52% of the boys and 43% of the girls pass. The percentage of the total who failed is ?  Choose the correct choice.
A) A)63.3% B) B)52.4% C) C)81.2% D) D)51.15% E) E)69.1%
Total number of students = 1300+700= 
<gadget id="calculator">1300+700</gadget>
<output>2_000</output>
2000   Number of students passed= (52% of 1300+43% of 700) = 676+301= 
<gadget id="calculator">676+301</gadget>
<output>977</output>
977   number of failures= 1023*100/2000= 
<gadget id="calculator">1023*100/2000</gadget>
<output>1_023/20 = around 51.15</output>
51.15%   Answer is 51.15%
<result>D</result>
1300 boys and 700 girls are examined in a test; 52% of the boys and 43% of the girls pass. The percentage of the total who failed is ?