Yes, you can pursue a career in accountancy or finance with a strong foundation in Mathematics from Class 11 Commerce. Mathematics plays a crucial role in both of these fields and having a solid understanding of mathematical concepts can greatly enhance your abilities and opportunities in these professions.

1. Importance of Mathematics in Accountancy:
- Mathematics is the foundation of accounting principles and concepts. It helps in understanding and analyzing financial data, calculating profits and losses, preparing financial statements, and interpreting financial ratios.
- Accountants need to have strong mathematical skills to perform calculations accurately and efficiently, such as calculating depreciation, tax liabilities, and inventory valuation.
- Mathematical concepts like probability and statistics are used in auditing and risk assessment, helping accountants identify potential fraud or irregularities in financial statements.

2. Importance of Mathematics in Finance:
- Finance involves analyzing and managing financial resources, and mathematics is essential for making informed financial decisions.
- Financial modeling and analysis require strong mathematical skills to calculate present value, future value, and to perform various financial calculations like net present value (NPV) and internal rate of return (IRR).
- Mathematics is used in portfolio management and investment analysis to evaluate risks and returns, calculate portfolio diversification, and optimize investment strategies.

3. Skills Required:
- A strong foundation in mathematical concepts like algebra, calculus, statistics, and probability is necessary for both accountancy and finance.
- Problem-solving skills and logical reasoning are crucial for identifying and solving complex financial problems.
- Attention to detail and accuracy are important qualities for working with numbers and financial data.

4. Career Opportunities:
- With a strong background in Mathematics, you can pursue various career paths in accountancy or finance, such as becoming a Chartered Accountant (CA), Certified Public Accountant (CPA), Financial Analyst, Investment Banker, or Risk Manager.
- These professions offer a wide range of opportunities in different sectors including accounting firms, financial institutions, corporate finance departments, and government organizations.

Conclusion:
A strong foundation in Mathematics from Class 11 Commerce provides a solid base for pursuing a career in accountancy or finance. It equips you with the necessary skills and knowledge to understand and analyze financial data, make informed decisions, and excel in these fields. With the right education and qualifications, you can explore various job opportunities and build a successful career in the financial industry.