Question

In a slip test, K got the 15th rank and he was 44th from the bottom of the list of passed students. 4 students did not take up the slip test and 3 students were failed. What is the total strenght of the class ?
A) 63
B) 62
C) 64
D) 65

Answer 1

We have keys position from top and bottom so the total students who passed are (L+R-1) where l and r are rank from left and from right respectively of a one person.
then number of passed students will be 58.
total students is equals to passed students + failed students + the students who didn't give the exam
58+4+3=65