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.
Since there are 100 units, the number of units occupied by tenants is 3/4 * 100 = 
<gadget id="calculator">3/4*100</gadget>
<output>75</output>
75.
If each tenant pays $400 every month, Mr Maximilian receives 75 * $400 = $
<gadget id="calculator">75*400</gadget>
<output>30_000</output>
30000 in rent revenue every month.
In a year, Mr Maximilian receives $30000 * 12 = $
<gadget id="calculator">30000*12</gadget>
<output>360_000</output>
360000 in rent revenue.

<result>360_000</result>