a student got 70% in one subject,80% in other.to get overall 75% how much he should get in third subject.  Select the correct option: A) 65% B) 75% C) 85% D) 95% E) 88%
Already average of two subjects is (70+80)/2= 
<gadget id="calculator">(70+80)/2</gadget>
<output>75</output>
75%   To maintain the percentage at 75%, he shouls get 75% marks in third subject   ANSWER:75%
<result>B</result>
a student got 70% in one subject,80% in other.to get overall 75% how much he should get in third subject.