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Milk contain 10% of water.What quantity of pure milk is should be added to 15litre of milk to reduce the water percentage is 7%

6 lit

6.4 lit

6.2 lit

6.6 lit

Explanation:

10% of water in 15 lit of milk =(10/100) × 15 = 1.5
X lit of pure milk added to reduce water to 7% $= (1.5)/(x+15) =7/100$ 150 = 105+7x
7x = 45
X = 45/7 = 6.4lit

By: Sandeep Dubey

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