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Question 1109967:  Donna invested her savings in two investment funds. The amount she invested in Fund A was 3  
 times as much as the amount she invested in Fund B. Fund A returned a 2% 
 profit and Fund B returned a 5% 
 profit. How much did she invest in Fund B, if the total profit from the two funds together was $660?  
 
 Answer by stanbon(75887)      (Show Source): 
You can  put this solution on YOUR website! Donna invested her savings in two investment funds. The amount she invested in Fund A was 3 times as much as the amount she invested in Fund B.  
Fund A returned a 2% profit and Fund B returned a 5% profit. 
 
How much did she invest in Fund B, if the total profit from the two funds together was $660? 
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Quantity Eq:: A = 3B 
Interest Eq:: 0.02A + 0.05B = 660 
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Rearrange and Modify to get: 
2A - 6B = 0 
2A + 5B = 66000 
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Subtract and solve for "B" 
11B = 66000 
B = $6000 
A = 3B = $18000 
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Cheers, 
Stan H. 
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