math
posted by George on .
Aldo invested his savings in two investment funds. The $24, 000that he invested in Fund A returned a 1% profit. The amount that he invested in Fund B returned a 5% profit. How much did he invest in Fund B, if both funds together returned a 2% profit?

$X in plan A @ 1% profit.
$(24000X) in plan B @ 5% profit.
1.01x + 1.05(24000x) = 1.02*24000,
1.01x + 25,200  1.05x = 24,480,
0.04x = 24,480  25,200 = 720,
X = $18,000 Invested in fund A.
24000  x = 24000  18,000 = $6,000 Invested in fund B.