Q68. A mixture of milk and water contains 20% water by volume. After adding 10 liters of pure water to the mixture, the water content increases to 30%. What was the original quantity of the mixture?Mathematics — Percentage — Question 68 of 75A. 20 LB. 70 LC. 40 LD. 30 LPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →