729 ml of a mixture contains milk and water in the ratio 7 : 2. How mu – McqOptions

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1.	729 ml of a mixture contains milk and water in the ratio 7 : 2. How much more water is to be added to get a new mixture containing milk and water in the ratio of 7 :3 ?
A.	60 ml
B.	70 ml
C.	81 ml
D.	90 ml
Answer» D. 90 ml

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