To help you achieve your goal of scoring 75% in your 2nd PU final exams, I'll provide you with some sample questions and study tips for Computer Science and Economics.

Computer Science

Sample Questions:

1. What is the difference between a compiler and an interpreter?

2. Write a program to find the factorial of a number using recursion.

3. Explain the concept of inheritance in object-oriented programming.

4. What is the purpose of the "finally" block in exception handling?

5. Write a program to implement a binary search algorithm.

Study Tips

1. Focus on understanding the concepts rather than just memorizing them.

2. Practice writing programs and solving problems on platforms like HackerRank, LeetCode, or CodeChef.

3. Review your notes and textbook regularly, and make flashcards to help you remember key terms.

4. Join online communities or study groups to discuss concepts and get help from peers.

Economics

Sample Questions:

1. What is the law of demand, and how does it relate to the price elasticity of demand?

2. Explain the concept of opportunity cost and how it applies to decision-making.

3. What is the difference between a perfectly competitive market and a monopoly?

4. Write a short essay on the benefits and drawbacks of globalization.

5. What is the concept of diminishing marginal utility, and how does it relate to consumer behavior?

Study Tips:

1. Focus on understanding the concepts and theories rather than just memorizing formulas and definitions.

2. Practice solving numerical problems and graphing economic concepts.

3. Read and analyze real-world examples and case studies to help you understand economic concepts.

4. Join online communities or study groups to discuss concepts and get help from peers.

*Additional Tips:*

1. Create a study schedule and stick to it.

2. Practice past exams and sample papers to get a sense of the exam format and timing.

3. Review your notes and textbook regularly, and make flashcards to help you remember key terms.

4. Stay motivated and focused by setting small goals and rewarding yourself when you achieve them.

I hope these study tips and sample questions help you prepare for your 2nd PU final exams and achieve your goal of scoring 75% in Computer Science and Economics!