480 students out of 1500 are enrolled in NCC. What percentage of students are not there in NCC?

A student scored 65% marks in an exam. If he scored 78%, 70%, 62% and 65% marks in four subjects out of five subjects, then what is his percentage of marks in the fifth subject?

A's weight is 25% of B's weight and 40% of C's weight. What percentage of C's weight is B's weight?

The salary of Anup is 30% more than that of Barun. Find what percentage is the salary of Barun less than that of Anup?

A number is mistakenly divided by 4 instead of multiplied by 4. What is the percentage change in the result?

If 30% of P is added to 40% of Q, it becomes 80% of Q. Accordingly, what is the percentage of Q with respect to P?