Question

A milkman buys 15 litres milk partly at the rate of Rs. 12 per litre and remaining at the rate of Rs. 14 per litre. By selling the whole milk at the rate of Rs. 15 per litre he has gained 12×1/2%. Find the separate quantity of milk purchased at given rates.

Answer 1

₹12 = 15 Lt
₹1 = 15/12 Lt ..5/4 Lt
₹14 = 5/4×14 = 35/2 = 17.5

Answer 2

5 litre at rupees 12 and 10litre at rupees 14