Question 178633
The friend invested 4000 at interest rate(lets call it x) and earned 200
:
4000x=200
:
x=.05 or 5% interest.
:
we know that you recieved a return of 1.25% more than your friend, that would be 5%+1.25%=6.25%.  You earned 156.25 so lets call the amount you invested y
:
.0625y=156.25
:
{{{highlight(y=2500)}}}dollars-amount you invested in your stock