How long will it take for a sum of money to grow from Rs.5000 to Rs.20,000, if it is invested at 10% p.a simple interest? Choose the correct option
A) 30 years B) 64 years C) 72 years D) 56 years E) None
In this case, Rs. 5000 has become Rs.20,000.   Therefore, the interest earned = 20,000 – 5000 =15000   Interest for Rs 5000 @ 10% for 1 year = 500   500 - 1   15000 - ? =&gt; 30 years   30 yearsnswer : 30 years
<result>A</result>
How long will it take for a sum of money to grow from Rs.5000 to Rs.20,000, if it is invested at 10% p.a simple interest?