Duplex Cap Rate Question

[Jordan Rajchel]

I am looking at a Duplex in my local area (New Albany, IN). 

The asking price is $189,500.

Without doing much research, the ad says 1425 total rent to be expected between both units.

By my calculation that's only about a 5.5% Cap rate assuming 60% NOI.

This seems pretty bad, I seem to recall hearing that you should generally shoot for around 10% cap rate.

Suggestions?