MBA CDOE (USOL) Panjab University MBA Entrance Exam with MCQ Answers 2016

A group consisting of 25 teachers, 20 engineers, 18 doctors and 12 salesman visited a fair and spent Rs. 1330 altogether. It was found that 5 teachers spent as much as 4 engineers, 12 engineers spent as much as 9 doctors and 6 doctors spent as much as 8 salesmen. If every person in a professional group spent the same amount, find the amount spent by each engineer.