A milkman sells 120 litres of milk for Rs.3360 and he sells 240 litres of milk for Rs.6120. How much discount does the trader 27. give per litre of milk, when he sells 240 litres of milk?
(a) Rs.2 (b) Rs.3.5 (c) Rs.2.5 (d) Rs.1.5 (e) of the above
Discount per litre = 28 – 25.5 = 2.5
