Three sets of 40, 50 and 60 students appeared for an examination and the pass percentage was 100, 90 and 80 respectively. the pass percentage of the whole set is	Choose one: A) 88.33 B) 84.33 C) 88.66 D) 84.66 E) None of these
total passed student =40+45+48= 
<gadget id="calculator">40+45+48</gadget>
<output>133</output>
133   133 is 88.66% of 150   ANSWER:88.66
<result>C</result>
Three sets of 40, 50 and 60 students appeared for an examination and the pass percentage was 100, 90 and 80 respectively. the pass percentage of the whole set is