A sum of Rs. 725 is lent at a fixed rate of interest at the start of the year. After 8 months, a further Rs. 362.50 is lent, but at a rate twice as high as before. Interest from both loans totals Rs. 33.50 at the end of the year. What was the original interest rate?
A. 3.6%
B. 4.5%
C. 5%
D. None of these
Answer:D
A sum of Rs. 725 is lent at a fixed rate of interest at the start of the year. After 8 months, a further Rs. 362.50 is lent, but at a rate twice as high as before. Interest from both loans totals Rs. 33.50 at the end of the year. What was the original interest rate?
A. 3.6% B. 4.5% C. 5% D. None of these