# CAT Quantitative Aptitude Questions | CAT Percentages Problems - Classroom

###### CAT Questions | Percentage Questions | Percentage - Classroom CAT Questions

The question is from CAT Percentages. 2IIMs CAT question bank provides you with CAT questions that can help you gear for CAT Exam CAT 2020. This question is from the topic percentages involving no. of boys and girls in one or more classrooms. 50% more than x is 1.5x. Simple, very useful idea.

Question 9 : Class B has 50% more students than class A. Number of girls in class A is equal to number of boys in class B. The percentage of girls is the same in both classes. What percentage of the student group are boys?

1. 33.33%
2. 40%
3. 25%
4. 60%

## Best CAT Coaching in Chennai

#### CAT Coaching in Chennai - CAT 2021Online Batches Available Now!

##### Method of solving this CAT Question from Percentages: 50% more than x is 1.5x. Simple, but very useful idea that might help you in solving these kinds of problems.

Let number of girls in class A = x
Let number of boys in class A = y
Total number of students = x + y
Proportion of girls = $$frac{x}{x + y}\\$ Number of boys in class B = x Total number of students in class B = 1.5$x + y)
Proportion of girls = 1 - $$frac{x}{1.5$x + y$}$ Percentage of boys in the overall student community = $\frac{x + y}{2.5}\\$ *$x + y) * 100 = 40%

The question is " What percentage of the student group are boys? "
40% of the student group are boys

##### Hence, the answer is 40%

Choice B is the correct answer.

###### CAT Coaching in ChennaiCAT 2021Enroll at 49,000/- 44,000/-

Online Classroom Batches Starting Now!

###### Best CAT Coaching in Chennai Introductory offer of 5000/-

Attend a Demo Class

##### Where is 2IIM located?

2IIM Online CAT Coaching
A Fermat Education Initiative,
58/16, Indira Gandhi Street,
Kaveri Rangan Nagar, Saligramam, Chennai 600 093

##### How to reach 2IIM?

Phone: (91) 44 4505 8484
Mobile: (91) 99626 48484
WhatsApp: WhatsApp Now
Email: prep@2iim.com