How much time will it take for an amount of Rs. 1400 to yield Rs. 140 as interest at 5% per annum of simple interest? Choose the correct choice from the following answers.
A) 8 years B) 4 years C) 7 years D) 6 years E) 2 years
Explanation:   Time = (100 x 140)/(1400 x 5) years   = 2 years.   Answer: 2 years
<result>E</result>
How much time will it take for an amount of Rs. 1400 to yield Rs. 140 as interest at 5% per annum of simple interest?