The cost of 8 fans and 14 ovens is Rs.36520. What is the cost of 12 fans and 21 ovens (in Rs.)?

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 ?