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?	Choose one:
A) 26.34 litres	B) 27.36 litres	C) 28 litres	D) 29.16 litres	E) 30 litres
Amount of milk left after 3 operations = [40(1 -4/40)^3] litres   =40 x 9/10 x 9/10 x 9/10	= 29.16 litres   Answer:29.16 litres
<result>D</result>
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?