In an examination, 40% of total students failed in Hindi, 40% failed in English and 15% in both. The percentage of these who passed in both the subjects is :  Options:
A) 10%  B) 20%  C) 30%  D) 40%  E) 50%
pass percentage = 100 - (40+45-15) = 100-70= 
<gadget id="calculator">100-70</gadget>
<output>30</output>
30   ANSWER:30%
<result>C</result>
In an examination, 40% of total students failed in Hindi, 40% failed in English and 15% in both. The percentage of these who passed in both the subjects is :