Albert borrowed a total of $ 5700 from Brian and Charlie. He paid simple interest at the rate of 7 % Per yr and 9 % per yr respectively.At the end of three years he paid $ 1494 as total interest. What is the interest paid to Brian at the end of three years?
Choose the correct answer:
A) 157.5  B) 160  C) 161  D) 165  E) 170
Let x be the amount borrowed form Brian. So amount borrowed form Charlie = 5700-x.   1494 = 21/100x + 27/100(5700-x)   =&gt;x = 750.   Interest paid = 3*7/100*750= 
<gadget id="calculator">3*7/100*750</gadget>
<output>315/2 = around 157.5</output>
157.5   157.5
<result>A</result>
Albert borrowed a total of $ 5700 from Brian and Charlie. He paid simple interest at the rate of 7 % Per yr and 9 % per yr respectively.At the end of three years he paid $ 1494 as total interest. What is the interest paid to Brian at the end of three years?