Real Estate MathIntermediateDelaware Exam

A Delaware apartment building has 20 units. 18 are rented at $1,200/month. The other 2 are vacant. What is the current occupancy rate and the effective gross monthly income?

A90% occupancy; $21,600/monthCorrect
B80% occupancy; $19,200/month
C90% occupancy; $24,000/month
D85% occupancy; $20,400/month

Why 90% occupancy; $21,600/month Is Correct

Answer A: 90% occupancy; $21,600/month

Occupancy rate = 18 ÷ 20 = 90%. Effective Gross Monthly Income = 18 units × $1,200 = $21,600.

Exam Tip: Real Estate Math

Math questions are formula-based. Memorize the key formulas: commission splits, proration, cap rate (NOI ÷ Value), GRM (Price ÷ Gross Rent), and LTV (Loan ÷ Value). Practice converting between annual and monthly figures.

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