In an examination, 25% of total students failed in Hindi, 40% failed in English and 35% 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 - (25+40-35) = 100-70= 
<gadget id="calculator">100-70</gadget>
<output>30</output>
30   ANSWER:30%
<result>C</result>
In an examination, 25% of total students failed in Hindi, 40% failed in English and 35% in both. The percentage of these who passed in both the subjects is :