The rate of failure in an examination is 39.25%. Find the least number of total candidates appeared in the examination.  Choose the correct choice from the following answers.
A) 100  B) 200  C) 300  D) 400  E) 500
if 100 student appear then failure=39.25 ......... which is not possible because number of student can not be fraction,like wise in 200 student,failure=78.5, so we have to make the failure percentage into a unit digit failure not fraction...so min no of student =400 so that no of failure=157..........so least no of student appeared in the exam= 400.   ANSWER:400
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The rate of failure in an examination is 39.25%. Find the least number of total candidates appeared in the examination.