He has to invest $9,169 in Putnam Global Equity and $4,584.5 in Bridgeway small cap to earn a total of $2,800 in interest for one year
Here, we want to find how much has to be invested in each fund
From the question, the investment in a is twice that of b
So, if he invests $x in b, he would be investing $2x in a
Let us work with the interests now
In the case of the interests, the total amount of interest in both will equal $2800 per year
Thus, we have that;
Multiply through by 100;
To get the investment in a, we simply multiply this result by 2 and we have 2(4584.5) = $9,169