A sum of money lent out at S.I. amounts to Rs. 710 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is?
Answers
A) s . 440  B) s . 586  C) s . 540  D) s . 740  E) s . 840

Rationale: "s . i for 5 years = ( 1020 - 710 ) = rs . 310 . s . i . for 2 years = 310 / 5 * 2 = rs . 124 . principal = ( 710 - 124 ) = rs . 586 . answer : b"
Answer: B