Answer:
Missing word <em>"The amount invested at 10% is $? and The amount invested in stock is ?"</em>
<em />
Let Susan invested $x that paid a 10% profit
Then (38,000 - x) suffered loss at 4%
Overall net profit = $3,350
10% of x - 5% of (38,000 - x) = $3,350
10/100*x - 5/100*(38,000 - x) = $3,350
10x - 5*(38,000 - x) = 335,000
10x - 190,000 + 5x = 335,000
15x = 335,000 + 190,000
15x = 525,000
x = 525,000/15
x = 35,000
From (38000 - x) when x = 35,000
==> 38,000 - 35,000
==> $3,000
So, the amount invested at 10% is $35,000 and the amount invested at 5% i.e stock is $3,000
