In order to pass in an examination, a student is required to get 280 marks out of the aggregate marks. Hema got 264 marks and was declared failed by 2 percent. What is the minimum passing percentage of the examination?

The difference between 20% of a number and 7/15 of the same number is 124.What is 40% of that number?

What is the least number to be added to 2530 to make it a perfect square?

What would be the compound interest (in Rs.) accrued on an amount of Rs.9000 at the rate of 11 pcpa in two years?

What should come in place of question mark (?) in the following number series?
9    10    24    81    340 ?

On a particular day, sweets were to be equally distributed among 960 students of a school. However, on that particular day, 360 students remained absent. Hence each student present on that day got three sweets extra. Had all 960 students remained present that day, how many sweets would each student have got?