A sum was put a simple interest at a certain rate for 1 years. Had it been put at 6% higher rate, it would have fetched Rs. 30 more. The sum is:
Choices:
A) s.500
B) s.600
C) s.700
D) s.800
E) s.900
Explanation :   Let the sub be Rs.x and the initial rate be R%.Then   x Ã— (R+6) Ã— 1/100âˆ’xÃ—RÃ—1/100=30   â‡’x Ã— 6Ã—1/100=30   â‡’x Ã— 1 /100=5   â‡’x=500   s.500nswer : Option s.500
<result>A</result>
A sum was put a simple interest at a certain rate for 1 years. Had it been put at 6% higher rate, it would have fetched Rs. 30 more. The sum is: