Mixtures and Allegations Practice Test 1

Question : 12 of 40

Marks: +1, -0

A vessel contains 40 litres of wine. From this vessel, 4 litres of wine is taken out and replaced by water. This process was further repeated. How much wine is left in the vessel?

35 litres
34.50 litres
36.1 litres
37.23 litres
20 litres

Validate

Solution:

After n operations, the quantity of wine

=[x(1-y/x)^n]\litres

=40(1-4/80)^2

=40×19/20×19/20=36.1\litres

Go to Question:

Prev Question

Next Question