If Rs.480 amount to Rs.540 in 4 years, what will it amount to in 6 years at the same rate % per annum?  Choose the correct choice from the following answers:
A) s.575
B) s.595
C) s.590
D) s.570
E) s.585
80 = (480*4*R)/100   R = 3.125%   I = (480*6*3.125)/100= 
<gadget id="calculator">(480*6*3.125)/100</gadget>
<output>90</output>
90   480 +90= 
<gadget id="calculator">480 +90</gadget>
<output>570</output>
570   ANSWER:s.570
<result>D</result>
If Rs.480 amount to Rs.540 in 4 years, what will it amount to in 6 years at the same rate % per annum?