In what time will Rs.4600 lent at 3% per annum on simple interest earn as much interest as Rs.5000 will earn in 5 years at 4% per annum on simple interest?	Select the correct option.
A) 7 1/3	B) 7 1/6	C) 7 1/4	D) 7 1/2	E) 7 1/5
(4600*3*R)/100 = (5000*5*4)/100   R = 7 1/4   Answer: 7 1/4
<result>C</result>
In what time will Rs.4600 lent at 3% per annum on simple interest earn as much interest as Rs.5000 will earn in 5 years at 4% per annum on simple interest?