In an examination, questions were asked in five sections. Out of the total students, 5% candidates cleared the cut-off in all the sections and 5% cleared none. Of the rest, 25% cleared only one section and 20% cleared four sections. If 24.5% of the entire candidates cleared two sections and 300 candidates cleared three sections. Find out how many candidates appeared at the examination?  Choose the correct choice from the following answers:
A) 1000
B) 1200
C) 1500
D) 2000
E) 1800
Solution: Passed in none = 5%   Passed in all = 5%   Passed in four = 20% 0f 90% = 18%   Passed in three = 24.5%   Passed in three =(100-5-5-22.5-24.5-18)= 
<gadget id="calculator">(100-5-5-22.5-24.5-18)</gadget>
<output>25</output>
25%.   But given 300 students passed in three.   Hence, 25%= 300.   So, 100% = 1200.   1200 students must have appeared.   Answer: Option 1200
<result>B</result>
In an examination, questions were asked in five sections. Out of the total students, 5% candidates cleared the cut-off in all the sections and 5% cleared none. Of the rest, 25% cleared only one section and 20% cleared four sections. If 24.5% of the entire candidates cleared two sections and 300 candidates cleared three sections. Find out how many candidates appeared at the examination?