यदि मूलधन ₹1000 है, ब्याज दर 5% प्रति वर्ष वार्षिक रूप से संयोजित है, और समय अवधि 2 वर्ष है, तो 2 वर्ष बाद कुल मिश्रधन कितना होगा?

A person invested Rs. 2,000 in a bank at a rate of 5% per annum for 2 years. What is the compound interest he will get?

What is the compound interest (in ₹) on a sum of ₹18,000 at 20% per annum for 234 years, compounded annually?