A sum of money lent out at S.I. amounts to Rs. 780 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is?
Choose one: A) s. 684 B) s. 500 C) s. 540 D) s. 740 E) s. 840
S.I for 5 years = (1020 - 780) = Rs. 240.   S.I. for 2 years = 240/5 * 2 = Rs. 96.   Principal = (780 - 96) = Rs. 684   s. 684NSWER:s. 684
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A sum of money lent out at S.I. amounts to Rs. 780 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is?