Calculate the economic profit for a firm if it's total revenues are Rs. 35 crores, explicit costs are Rs. 7 crores, and implicit costs are Rs. 10 crores.
Ram travels towards east covering 5 km. He takes a left turn and travels 10 km more. Then, he takes a right turn and travels another 5km and finally takes a right turn to cover 10 km. How far is he from his original position?