Final answer:
Rupesh obtained 66% of the total marks in his annual examination.
Step-by-step explanation:
To find the percentage of marks obtained by Rupesh, we can use the formula: Percentage = (Marks obtained / Total marks) * 100.
Given that Rupesh secured 495 marks out of 750, we can substitute these values into the formula: Percentage = (495 / 750) * 100. Evaluating this expression, we get: Percentage = 66%.
Therefore, Rupesh obtained 66% of the total marks in his annual examination.