A sum was put a simple interest at a certain rate for 3 years. Had it been put at 3% higher rate, it would have fetched Rs. 90 more. The sum is:	Choose the correct choice from the following options:
A) s.750 B) s.900 C) s.1000 D) s.1200 E) s.1500
Explanation :   Let the sub be Rs.x and the initial rate be R%.Then   x Ã— (R+3) Ã— 3/100âˆ’xÃ—RÃ—3/100=90   â‡’x Ã— 3Ã—3/100=90   â‡’x Ã— 3 /100=30   â‡’3x=3000   â‡’x=1000   Answer : Option s.1000
<result>C</result>
A sum was put a simple interest at a certain rate for 3 years. Had it been put at 3% higher rate, it would have fetched Rs. 90 more. The sum is: