List of top Economics Questions on Banking Systems

Which function is mainly performed by commercial banks?
In a hypothetical economy, the Cash Reserve Ratio (CRR) is \(20\%\) and the initial deposit is \(\₹100\). How much money can the bank lend in the first round?
A bank receives reserves of ₹100. If the CRR is 20%, what is the maximum total deposit that can be created in the system?