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?

If at least 60% marks in Physics are required for pursuing higher studies in Physics, how many students will be eligible to pursue higher studies in Physics?

The percentage of number of students getting at least 60% marks in Chemistry over those getting at least 40% marks in aggregate, is approximately?

The number of students scoring less than 40% marks in aggregate is?

If it is known that at least 23 students were eligible for a Symposium on Chemistry, then the minimum qualifying marks in Chemistry for eligibility to Symposium would lie in the range?

What are the average marks obtained by all the seven students in Physics? (rounded off to two digit after decimal)

The number of students who obtained 60% and above marks in all subjects is?

What was the aggregate of marks obtained by Sajal in all the six subjects?

In which subject is the overall percentage the best?

What is the overall percentage of Tarun?