Answer:
The amount that Lena will invest in fund B would be $4000.
Explanation:
Given information -
Amount invested in fund A - $6000
Return earned on fund A - 6%
Let us assume amount invested in fund B be x
Return earned on fund B - 1%
Return on both funds together - 4%
Let us assume the total amount of fund invested be ($6000 + x)
Now using simple equation , we will take out the value of x which is the amount invested in fund B -
$6000 X 6% + x X 1% = 4% ( $6000 + x )
= $360 + .01 x = $240 + .04 x
= $360 - $240 = .04 x - .01 x
$120 = .03 x
x = $120 / .03
= $4000.
