Answer:
$6000
Step-by-step explanation:
Profit from the investment of $8000 in fund A
= 10% × $8000
= $800
Let the amount invested in fund B be $Y
Profit from the investment of $Y in fund B
= 3% × $Y
= $0.03Y
if both funds together returned a 7% profit
800 + 0.03Y = 7% (8000 + Y)
800 + 0.03Y = 560 + 0.07Y
Collect like terms
0.07Y - 0.03Y = 800 - 560
0.04Y = 240
Y = 240/0.04
Y = 6000
Amount invested in Fund B is $6000
