###Human: Mr. Maximilian has a rental building that he collects rent from every month. The number of units in the building is 100. If the building is 3/4 occupied for a whole year, and each resident of the building pays a rent of $400, calculate the amount of money Mr. Maximilian receives in that year., ### Assistant: Since there are 100 units, the number of units occupied by tenants is 3/4 * 100 = 75
If each tenant pays $400 every month, Mr Maximilian receives 75 * $400 = $30000 in rent revenue every month.
In a year, Mr Maximilian receives $30000 * 12 = $360000 in rent revenue. 
 So the answer is :  360000