UP Police SI Exam 23 Nov 2021 Shift 3 Solved Paper

For three consecutive years, the costs of a product were Rs. 138 per litre, Rs. 276 per litre and Rs. 345 per litre respectively. If a common man spends an Rs. 15180 on that product, then what is the average cost of that product per litre for the three years? (In Rs.)