Question 147

A milkman sells 120 litres of milk for Rs. 3,360/- and he sells 240 litres of milk for Rs. 6,120/- How much concession does the trader give per litre of milk, when he, sells 240 litres of milk?

Solution

Case I : Milkman sells 120 litres of milk for Rs. 3,360/-

=> S.P. per litre = Rs. $$\frac{3360}{120}$$

= Rs. 28

Case II : Milkman sells 240 litres of milk for Rs. 6,120/-

=> S.P. per litre = Rs. $$\frac{6120}{240}$$

= Rs. 25.5

$$\therefore$$ Required discount = Rs. (28 - 25.5) = Rs. 2.5

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