Question

11. How much water must be added to a bucket which contains 40 L of milk at the cost price of 3.50 per L, so that the cost of milk reduces to2 per L? (a) 25 L (b) 28 L (C) 30 L (d) 35 L

11th - 12th Class

Maths

Solution

5.0 (2 ratings)

11. (3) Total cost price of milk ( =40 times 3.5=140 ) After adding water to the milk, the cost price of milk reduces ₹ 2 per L ( therefore ) Total quantity of mixture ( =frac{text { Total cost }}{text { Cost per liter }} ) ( =frac{140}{2}=70 mathrm{L} ) ( therefore ) Quantity of water ( =70-40=30 mathrm{L} )