John would like to move from the suburbs into the city, but the rent in the city is very high. john has found an apartment he really likes, but he can only afford about 60% of the monthly rent. what is the best housing option for john?

It would either be going back to the suburbs. Getting a job in the city that will allow him to afford the rent. Trying to buy the apartment but take a mortgage from a bank. Buying a house or another apartment in the city with a mortgage. or finding an apartment he can afford.
That's all I could come up with so I hope it helps.

Rent it with a roommate da 

The dangers of an inadequate monetary supply.