from a solution of milk and water, 40litres is taken out and replaced with water. then milk and water ratio becomes 2:1, if 30litres would have been replaced with water then the ratio becomes 11:7. find water quantity initially.
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Step-by-step explanation:
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Step-by-step explanation:
Quantity of milk = (30 x
3
2
) liters = 20 liters
Quantity of water in it = (30 - 20) liters = 10 liters
New ratio = 1 : 2
Let quantity of water to be added further be x liters.
Then, milk : water =
10+x
20
Now,
10+x
20
=
2
1
So, 40 = 10 + x
x=30
Quantity of water to be added = 30 liters
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