Discussion :: Alligation or Mixture
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A container contains 40 litres of milk. From this container 4 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container?
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Answer : Option D
Explanation :
Amount of milk left after 3 operations = [ 40 \( (1-\frac { 4 } { 40} )]^3\) litres
=[ 40 x \( \frac { 9} { 10 }\) x\( \frac { 9} { 10 }\)x \( \frac { 9} { 10 }\)] =29.16 litres
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