certain rate of interest. After 4 months, Rs 500 is again borrowed, but this time at a rate of interest that is thrice the original rate. At the end of the year, the total interest on both the amounts is Rs. 100. What is the original rate per annum?
A3.33%Correct AnswerIncorrect Answer
B5%Correct AnswerIncorrect Answer
C8%Correct AnswerIncorrect Answer
D10%Correct AnswerIncorrect Answer
Solution
If x be the original rate `(1000xx1xx x)/100 + (500xx2/3xx3x)/100 = 100` 20x = 100 x = 5%