Suppose 1.5 liters of milk costs Rs 30 and we add some water to it. For what ratio of water and milk will the mixture cost Rs 15 per liter?
Answer & explanation
Correct answer: option 4
1.5 liters of milk costs Rs 30 , So 1 liter will cost Rs 20
let C = Rs. 0 / liter , D = Rs. 20 / liter and M = Rs. 15 / liter
Then the ratio of mixes is (D-M): (M-C)