What sum of money will produce Rs.90 as simple interest in 4 years at 4 1/2 percent?	Select the correct option:
A) Rs.550 B) Rs.650 C) Rs.600 D) Rs.500 E) Rs.700
Explanation:   90 = (P*4*9/2)/100   90 = 36P/100   P = 500   Answer: Option Rs.500
<result>D</result>
What sum of money will produce Rs.90 as simple interest in 4 years at 4 1/2 percent?