Skip to content
Related Articles
Open in App
Not now

Related Articles

QA – Placement Quizzes | Mixtures and Alligation | Question 3

Improve Article
Save Article
  • Last Updated : 28 Jun, 2021
Improve Article
Save Article

A drum contains forty liters of whisky. Four liters of whisky is taken out and replaced by soda. This process is carried out twice further. How much whisky is now contained by the container?
(A) 30 Lt
(B) 29.16 Lt
(C) 28.70 Lt
(D) 27.60 Lt

Answer: (B)

Explanation: Hint: Suppose a solution contains x units of a liquid from which y units are taken out and replaced by water. After n repeated operations, quantity of pure liquid remaining in solution
 =x(1−y/x)n=x(1−y/x)n units.

So, Whisky in the drum now


Quiz of this Question

My Personal Notes arrow_drop_up
Related Articles

Start Your Coding Journey Now!