- Have any questions?
- [email protected]
- Home
- A container contains 40 litres of milk.
Question 1:
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?
A. 26 litres
B. 29.16 liters
Feedback Suppose a container contains x units of a liquid from which y units are taken out and replaced by water. After n operations, a quantity of pure liquid =x(1-yx)n units.
milk contained by the container now
=40(1-4/40)^3=40(1-1/10)3=40×9/10×9/10×9/10=4×9×9×9/100=29.16
milk contained by the container now
=40(1-4/40)^3=40(1-1/10)3=40×9/10×9/10×9/10=4×9×9×9/100=29.16
C. 28 liters
D. 28.2 liters
These questions are from this test. Would you like to take a practice test?