A number is increased by 20% and then reduced by 20%. What is the net change?
Answer: 4% decrease
Starting with 100 gives 120 after the increase and 96 after the reduction. The final value is 4% lower than the starting value.
Independent preparation guide
TCS Aptitude Questions for Placement Preparation
This independent guide helps students practise common quantitative aptitude, reasoning, and verbal concepts for placement preparation. It is not official TCS assessment material.
Use the practice below to strengthen core concepts, then combine timed aptitude practice, interview preparation, and resume review in a realistic placement routine.
What should students prepare for TCS placement tests?
Focus on arithmetic accuracy, logical patterns, reading clarity, and communicating your reasoning. Assessment formats can change, so confirm current information from the employer's official careers site before applying.
How should you use these practice questions?
Solve without looking at the answer, check the explanation, and note the concept that caused difficulty. Revisit the concept before attempting a timed set.
Original practice examples
All testers are detail-oriented. Some developers are testers. Which conclusion follows?
Answer: Some developers are detail-oriented
The developers who are testers belong to the group described as detail-oriented. The statement does not apply to every developer.
Frequently asked questions
Are these official TCS questions?
No. SkillfinityAI and Electrobtech are not affiliated with, endorsed by, or sponsored by TCS. This page provides independent educational practice material, not official assessment material.
How can I prepare beyond aptitude practice?
Add interview preparation, project explanations, and a clear fresher resume to your practice plan.