Lena invested her savings in two investment funds. The amount she invested in Fund A was $3000 less than the amount she invested in Fund B. Fund A returned a

Question

Lena invested her savings in two investment funds. The amount she invested in Fund A was
$3000
less than the amount she invested in Fund B. Fund A returned a
3%
profit and Fund B returned a
6%
profit. How much did she invest in Fund B, if the total profit from the two funds together was
$1530
?

Answer 1

This math word problem translates into system of two linear equations:

A - B = -3000

0.03A + 0.06B = 1530

Solving will give the answer

A = $15,000

B = $18,000 (the answer)