An investor can sell her MicroTron stock for 36$ per share and her Dynaco stock for 44$ per share, If she sells 300 shares altogether, some of each stock, at an average price per share of 40$, how many shares of Dynaco stock has she sold?
Choose the correct choice from the following answers: A) 52 B) 75 C) 92 D) 136 E) 150
w1/w2 = (A2 - Aavg)/(Aavg - A1) = (44 - 40)/(40 - 36) = 4/4= 
<gadget id="calculator">4/4</gadget>
<output>1</output>
1/1= Number of MicroTron stocks/Number of Dynaco stocks   So for every 1 MicroTron stock, she sold 1 Dynaco stock.   So out of 300 total stocks, (1/1)th i.e. 300/2 = 150 must be Dynaco stock.   Answer (150)
<result>E</result>
An investor can sell her MicroTron stock for 36$ per share and her Dynaco stock for 44$ per share, If she sells 300 shares altogether, some of each stock, at an average price per share of 40$, how many shares of Dynaco stock has she sold?