Ms. Mamta opened a cumulative Deposit Account of monthly instalment of ₹1200 at 9% per annum simple interest. She earned a total interest of ₹5994 . How many instalments did she pay?
Mr. Anand opened a cumulative Deposit Account of monthly instalment ₹200 at 9% per annum simple interest. She earned a total interest of ₹1764. How many instalments did he pay?