Quantitative Aptitude – Arithmetic – Ratios – Raju and Lalitha originally had marbles



Slot -1 – Quantitative Aptitude – Arithmetic – Ratios – Raju and Lalitha originally had marbles



Raju and Lalitha originally had marbles in the ratio 4:9. Then Lalitha gave some of her marbles to Raju. As a result, the ratio of the number of marbles with Raju to that with Lalitha became 5:6. What fraction of her original number of marbles was given by Lalitha to Raju?

a) 6/19
b) 7/33
c) 1/5
d) ¼

Solution:
Let original number of marbles with Raju and Lalitha are 4x and 9x respectively. Let Lalitha gave n marbles to Raju and the ratio becomes 5:6
So (4x+n)/(9x-n)=5/6
24x+6n=45x-5n
21x=11n
n=21x/11
Fraction of marbles given by Lalitha to Raju = n/9x=(21x/11)/9x=7/33
Correct answer b) 7/33

Other posts related to Quantitative Aptitude – Modern Maths

Permutation and Combination – Fundamental Principle of Counting
Permutation and Combination – Distribution of Objects
How to find Rank of a Word in Dictionary (With or Without Repetition)
Set Theory- Maximum and Minimum Values
How to solve questions based on At least n in Set Theory for CAT Exam?
Sequence and Series Problems and Concepts for CAT 2017 Exam Preparation
Basic Probability Concepts for CAT Preparation

Online Coaching Course for CAT 2020

a) 900+ Videos covering entire CAT syllabus
b) 2 Live Classes (online) every week for doubt clarification
c) Study Material & PDFs for practice and understanding
d) 10 Mock Tests in the latest pattern
e) Previous Year Questions solved on video