HARD
Earn 100

A milkman sells the milk at the cost price but he mixes the water (freely available) in it and thus he gains 9.09%. The quantity of water in the mixture of 1 litre is :
(a)83.3 ml
(b)90.90 ml
(c)99.09 ml
(d)100 ml
(e)None of these

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A litre mixture of water and alcohol contains alcohol. How much more alcohol must be added to make the strength of alcohol in the new mixture?

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