80 liter mixture of milk and water contains 10% milk. How much milk must be added to make water percentage in the mixture as 80%?

Question

Answer 1

pick the constant one
like here the constant is water
so
water % in 80 l mix=100-10=90%
water % in final mixture =80%
----> 90% of 80= 80% of x
---->x=90
milk to be added =90-80=10l
hope this helps

Answer 2

pick the constant one
like here the constant is water
so
water % in 80 l mix=100-10=90%
water % in final mixture =80%
----> 90% of 80= 80% of x
---->x=90
milk to be added =90-80=10l
hope this helps

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80 liter mixture of milk and water contains 10% milk. How much milk must be added to make water percentage in the mixture as 80%?