A sum of money lent out at S.I. amounts to Rs. 660 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is? Choose the correct answer
A) s.440 B) s. 500 C) s. 540 D) s. 740 E) s. 516
S.I for 5 years = (1020 - 660) = Rs. 360.   S.I. for 2 years = 360/5 * 2 = Rs. 144.   Principal = (660 - 144) = Rs. 516.   ANSWs. 516R:s. 516
<result>E</result>
A sum of money lent out at S.I. amounts to Rs. 660 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is?