How much time will it take for an amount of Rs. 400 to yield Rs. 100 as interest at 5% per annum of simple interest?
Choose the correct choice from the following options
A) 5 years	B) 4 years	C) 7 years	D) 6 years	E) 2 years
Explanation:   Time = (100 x 100)/(400 x 5) years   = 5 years.   5 yearsnswer: 5 years
<result>A</result>
How much time will it take for an amount of Rs. 400 to yield Rs. 100 as interest at 5% per annum of simple interest?