A sum was put at simple interest at a certain rate for 10 years . Had it been put at 5% higher rate , it would have fetched Rs.200 more. What was the Sum?
Choose one
A) s.550	B) s.1000	C) s.600	D) s.200	E) s.400
At 5% more rate, the increase in S.I for 10 years = Rs.200 (given)   So, at 5% more rate, the increase in SI for 1 year = 200/10 = Rs.20/-   i.e. Rs.20 is 5% of the invested sum   So, 1% of the invested sum = 20/5   Therefore, the invested sum = 20 × 100/5 = Rs.400 Answer: s.400
<result>E</result>
A sum was put at simple interest at a certain rate for 10 years . Had it been put at 5% higher rate , it would have fetched Rs.200 more. What was the Sum?