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?

26.34 litres
27.36 litres
28 litres
29.16 litres

Correct Answer: 29.16 litres

Explanation:

Amount of milk left after 3 operations =	[	40	❨	1 -	4	❩	3	] litres
					40

=	❨	40 x	9	x	9	x	9	❩	= 29.16 litres.
			10		10		10

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