A merchant borrowed Rs. 2000 from two money lenders. For one loan, he paid the interest at 8% per annum and for the other 6% per annum. The total interest paid for one year was Rs. 135. How much did he borrow at each rate?
.08 x + .06 (2000-x) = 135 solve for x , the amount at 8% then 6% amount = 2000-x