John invested his savings in two investment funds. The amount he invested in Fund A was

$8000
less than the amount he invested in Fund B. Fund A returned a
4%
profit and Fund B returned a
8%
profit. How much did he invest in Fund B, if the total profit from the two funds together was
$1360
?

1 answer

If he invested $x in B, then just add up the interest:

.04(x-8000) + .08x = 1360