एक निश्चित धनराशि साधारण ब्याज की किसी दर से 6 वर्षों में स्वयं की तिगुनी हो जाती है। उसी ब्याज दर से यह कितने वर्षों में स्वयं की पांच गुनी हो जाएगी?

A sum becomes 2215 of itself in 6 years at simple interest. Find the rate of interest per annum.

In how many years will a sum of ₹5,500 amount to ₹6,600 at a simple interest rate of 5% per annum?

A sum of money amounts to ₹16000 in 6 years at simple interest of 25 percent per annum. What will be the total interest for 6 years?