# From 40 liters of 2: 3 milk-water solutions, 5 liters are withdrawn and replaced by 5 liters of water. Now, 8 liters are withdrawn and replaced by 8 liters of water. Finally, 10 liters are withdrawn and replaced by 10 liters of water. What is the ratio of water to milk in the solution now? Option 1) Option 2) Option 3) Option 4) Option 5) Answers (1)

40 L solution = milk = 2/5 x 40 = 16 L

Water = 16 liters

5 L withdrawn means = 5/40 =1/8 part taken out

Means = 1/8 x16 and 1/8 of 24 L = 2L milk and 3 L water

Now milk = 14 L

Water = 21 L

5L water added = 14 L , 26 water

8L withdrawn = 1/5th part = 1/5 x 14 = 2.8 milk

=1/5x 26 = 5.2 L water

Now milk = 11.2 liter

Water = 20.8 liter

8 L added = milk = 11.2 L , W = 28.8 L

Now 10 L taken out = milk= 11.2 – 1/4 x11.2, water 28.8 -28.8 x ¼

M= 8.4L

W= 21.6L

10 L added M= 8.4 L

W= 31.6 L

Ratio= 31.6:8.4 = 79:21

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