Question
A vessel contains some milk .7 liter of the milk was
taken out of the vessel and replaced with 7 liter of water and again 7 liter of mixture was taken out and was replaced with water. Now the ratio of milk to water become 100:69. Find the initial Quantity of milk in the vessel.Solution
Let the Quantity of milk initially is x liter. Using Direct Formula, =100/100+69 = (x-7 / x)2 =100/169 = (x-7/x)2 x-7/x = 10/13 13x -91 = 10x 3x = 91 X =30.33 liter
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