In a mixture of 400 litres of milk and water, the ratio of milk and water is 9 : 1. What amount of water should added to the milk such that the new mixture of milk and water maintains a ratio of 3 : 1?
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1. Answer is 93.33 litres
quantity of milk in the mixture = 9/10×400 = 360 litres
quantity of milk in the mixture = 1/10 × 400 = 40 litres
let the water added be x
so,
400= 3(40+x)
400= 120+ 3x
400-120= 3x
280 = 3x
93.33 = x
93.33 litres of water should added to the milk such that the new mixture of milk and water maintains a ratio of 3 : 1
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