1.  What is the different between the number of students passed with 30 as cut-off marks in Chemistry and those passed with 30 as cut-off marks in aggregate?

A. 3
B. 4
C. 5
D. 6

Answer: Option D

Explanation:

Required difference

  = (No. of students scoring 30 and above marks in Chemistry)
   - (Number of students scoring 30 and above marks in aggregate)

  = 27 - 21

  = 6.