Problema Solution

Equal amounts are invested in each of three accounts paying 7%,8% and 10.5% anually. If one years combined interests income is 1,249,50 how much is invested in each account?

Answer provided by our tutors

et the amount be $x

interest for 1 year at 7% = 0.07x

Interest for 1 year at 8%=0.08x

10.5% =0.105x


 

...

0.07x+0.08x+0.105x=1224

0.255x=1224

x= 1224/0.255

x= $4,800 invested in each amount