# CAT Practice : Percents, Profits

Understanding the subjunctive clause is important in quant also. Otherwise, this question can sound absurd.

## Percentages - Classroom

Q.8: In a class, if 50% of the boys were girls, then there would be 50% more girls than boys. What percentage of the overall class is girls?
1. 25%
2. 33.33%
3. 40%
4. 20%

Choice D. 20%

## Detailed Solution

For questions of this type, it is best to go from the final step. In the final state, the number of girls should be 1.5 * the number of boys.

When 50% of the boys are taken as girls, let the number of boys = x
Number of girls = 1.5x
total number of students = 2.5x

Original number of boys = 2x (50% of boys = x)
Original number of girls = 0.5x

Girls form 20% of the overall class.

## Our Online Course, Now on Google Playstore!

### Fully Functional Course on Mobile

All features of the online course, including the classes, discussion board, quizes and more, on a mobile platform.

### Cache Content for Offline Viewing

Download videos onto your mobile so you can learn on the fly, even when the network gets choppy!

## More questions from Averages, Ratios, Mixtures

A number of beautiful questions from three allied topics. Most sportsmen will tell you - If you know the percentage play, you can profit well from it,