Question 675060
let $x is invested at 4% and $(25000-x)is it at 6%
 so the total yield is
 4x/100+6(25000-x)/100=1300
 or 4x+150000-6x=130000 multiplyig 100 on both sides
 or 2x=20000
 or x=10000
 so $10000 is invested at 4% and $15000 is it at 6%
 ans