A sum was put a simple interest at a certain rate for 7 years. Had it been put at 2% higher rate, it would have fetched Rs. 350 more. The sum is:
Choose the correct option:
A) s.500
B) s.1000
C) s.1500
D) s.2000
E) s.2500
Explanation :   Let the sub be Rs.x and the initial rate be R%.Then   x Ã— (R+2) Ã— 7/100âˆ’xÃ—RÃ—7/100=350   â‡’x Ã— 2Ã—7/100=350   â‡’x Ã— 7 /100=175   â‡’7x=17500   â‡’x=2500   s.500nswer : Option s.500
<result>A</result>
A sum was put a simple interest at a certain rate for 7 years. Had it been put at 2% higher rate, it would have fetched Rs. 350 more. The sum is: