Kevin invested his savings into two investment funds the amo

Kevin invested his savings into two investment funds the amount he invested in fund A was 3000 less than the amount he invested in fund B. Fund A returned 7% profit and fund b returned a 4% profit how much did he invest in fund if total profit from two funds together was 1330

Solution

Let the fund invested in fund B is x

fund invested in A is x-3000

profit returned by A =7(x-3000)/100

profit returned by B =4x/100

7(x-3000)/100 +4x/100 =1330

(7x -21000)/100 +4x/100 =1330

7x -21000 +4x =133000

11x -21000=133000

11x =112000

x=10181.81

invested in B

7181.81 invested in A