A car owner buys gasoline at Rs. 17, Rs. 19 & Rs. 21 per liter for three consecutive years. Compute the average cost per liter, if he spends Rs. 6783 per year?
1
Rs. 18.49
2
Rs. 19.20
3
Rs. 21.66
4
Rs. 18.85
5
None of these
A car owner buys gasoline at Rs. 17, Rs. 19 & Rs. 21 per liter for three consecutive years. Compute the average cost per liter, if he spends Rs. 6783 per year?