How much time will it take for an amount of Rs.500 to yield Rs.100 as interest at 5% per annum of simple interest?
5 years
4 years
6 years
3 years
Let the time taken be t years. Then,
100=500×5×t100
⇒t=100×100500×5 years=4 years
How much time will it take for an amount of ₹ 450 to yield a simple interest of ₹ 81 at 4.5% per annum ?
How much time will it take for ₹ 800 to yield a simple interest of ₹ 80 at 5% per annum?