Home




The contents in beakers A and B are 90 litres of milk and 90 litres of water

Milk Water Mixture GMATThe contents in beakers A and B are 90 litres of milk and 90 litres of water respectively. Now, 30 litres of milk is taken from A and put into beaker B. After thoroughly mixing, 12 litres of the mixture is taken from B and put into beaker A. Find the percentage of water in beaker A.

A) 14.5%
B) 12.5%
c) 15.5%
D) 17.5%
E) 14.0%

Answer

This is a question on Ratio and Proportion. The best way to solve these questions is to move step by step and analyse the mixture in terms of ratio at every step.

Step 1: When 30 litres of milk is transferred from Beaker A to B

Amount of milk in Beaker A: 60 litres
Amount of water in Beaker A: 0

Amount of milk in Beaker B: 30 litres
Amount of water in Beaker B: 90 litres

Ratio of milk to water in Beaker B is 1 : 3

Step 2: When 12 litres of mixture is transferred from Beaker B to Beaker A, the mixture contains milk to water in the ratio of 1 : 3, i.e. 3 litres and 9 litres respectively

Amount of milk in Beaker A: 63 litres
Amount of water in Beaker A: 9 litres

Amount of milk in Beaker B: 27 litres
Amount of water in Beaker B: 81 litres

Percentage of water in Beaker A = (Amount of water / Total amount of mixture (water + milk))*100 => (9 / 72)*100 = 12.5%

Correct Answer: B


About the Auth
or

Gyan OneGyanOne is an educational services firm focused on premium GMAT coaching, application advisory (with a focus on ISB applications), and interview preparation for B-school admissions. GyanOne operates in the New Delhi region of India and has top global B-school alumni with a minimum score of 770 on the GMAT, as instructors. All GyanOne counsellors are professionally trained top B-school alumni with an experience of 100+ MBA applications behind them.

Essential GMAT Reading Comprehension Guide


After reading F1GMAT’s Essential GMAT Reading Comprehension Guide, you will:

1. Complete GMAT RC Questions in less than 1 minute and 50 seconds
2. Read Faster
3. Take Notes Effectively
4. Collect and Interpret Facts
5. Speed up Summary Creation
6. Remember Information
7. Question the Author   
8. Learn to Answer GMAT Reading Comprehension Title question   
9. Learn to Answer GMAT Reading Comprehension Main Idea Question   

10.Learn to Answer GMAT Reading comprehension Inference question

11. Learn to Answer GMAT Reading Comprehension Detail Question   

12. Learn to Answer GMAT Reading Comprehension Purpose Question
12. Learn to Answer GMAT organization of passage Question
13. Learn to identify the style/tone or attitude of the author

Download Essential GMAT Reading Comprehension Guide (2019 Edition) (100+ New Questions)









Mastering GMAT Critical Reasoning



After you read F1GMAT’s Mastering GMAT Critical Reasoning Guide, you will learn:

How to overcome flawed thinking in GMAT Critical Reasoning?  


How to spot Inconsistencies in Arguments  

How to eliminate out of scope answer choices using Necessary and Sufficient Conditions  

How to Paraphrase GMAT Critical Reasoning Question  

How to Answer Assumption Question Type  

How to Answer Conclusion Question Type  

How to Answer Inference Question Type  

How to Answer Strengthen Question Type  

How to Answer Weaken Question Type  

How to Answer bold-faced and Summary Question Types  

How to Answer Parallel Reasoning Questions  

How to Answer the Fill in the Blanks Question


Download Mastering GMAT Critical Reasoning (2019 Edition) (25+ New Questions)




Navigate F1GMAT


F1GMAT Services (MBA Applicants) 


F1GMAT's Books

MBA Salary(Latest Salary Data)
 
MBA Admission Interview Tips

Funding 

Deadlines

MBA Application Essays


MBA Recommendation Letter

GMAT Tutorials

GMAT Question Bank

Top MBA Programs

Get F1GMAT's Newsletters (Best in the Industry)
Included in the Newsletter:

  • Ranking Analysis
  • Post-MBA Salary Trends
  • Post-MBA Job Function & Industry Analysis
  • Post-MBA City Review
  • MBA Application Essay Tips
  • School Specific Essay Tips
  • GMAT Preparation Tips
  • MBA Admission Interview Tips
  • School Specific Interview Tips
  • Funding Guidance and
  • Special Consultation Service (only for Subscribers)

Subscribe to F1GMAT's Newsletter