Real Estate MathIntermediateDelaware Exam

A property has annual gross rents of $36,000. After a 6% vacancy factor and $15,000 in operating expenses, what is the NOI?

A$18,840Correct
B$19,560
C$21,000
D$33,840

Why $18,840 Is Correct

Answer A: $18,840

Effective Gross Income = $36,000 − ($36,000 × 6%) = $36,000 − $2,160 = $33,840. NOI = $33,840 − $15,000 = $18,840.

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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