What sum of money will amount to Rs. 520 in 5 years and to Rs. 568 in 7 years at simple interest?
Select the correct option.
A) Rs. 400. 00 B) Rs. 120. 00 C) Rs. 510. 00 D) Rs. 520. 00 E) Rs. 220. 00
Explanation:   SI for 2 years = 568 – 520 = Rs. 48   SI for 5 years = Rs. 120   Principal = 520-120 = Rs. 400   Rs. 400. 00nswer: Rs. 400. 00
<result>A</result>
What sum of money will amount to Rs. 520 in 5 years and to Rs. 568 in 7 years at simple interest?