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CPACPA MCQ Strategy: Eliminating Wrong Answers Under Pressure
A step-by-step walkthrough of a difficult CPA FAR multiple-choice question — the elimination process, the common traps, and how to get to the right answer even when you are unsure.
The CPA exam has approximately 50–60 MCQs per section. You have about 90 minutes for the MCQ testlets, leaving roughly 90 seconds per question. At that pace, you cannot derive every answer from first principles — you need a fast, reliable elimination process. This walkthrough shows that process on a representative FAR question.
A. $24,000 B. $30,000 C. $40,000 D. $33,000
On January 1, Year 1, Pell Co. purchased a machine for $264,000 and depreciated it using the straight-line method over an 8-year useful life with no residual value. On January 1, Year 4, Pell determined that the machine had a useful life of 6 years from the date of acquisition, with a residual value of $24,000. An accounting change was made in Year 4 to reflect the additional data. What is the machine's depreciation expense for Year 4?
[1 mark]
Identify what is actually being asked
This is a change in accounting estimate — not a correction of an error, not a change in accounting principle. A change in estimate is accounted for prospectively (going forward), not retrospectively. This is a critical rule: you do not restate prior periods, you do not calculate a cumulative catch-up. You adjust depreciation from the date of the change going forward.
Calculate the book value at the date of change
Original cost: $264,000 Original life: 8 years, no residual value Annual depreciation (Years 1–3): $264,000 ÷ 8 = $33,000/year Accumulated depreciation at Jan 1, Year 4: $33,000 × 3 years = $99,000 Book value at January 1, Year 4: $264,000 − $99,000 = $165,000
Apply the new estimate prospectively
New useful life: 6 years from acquisition = 3 years remaining (Years 4, 5, 6) New residual value: $24,000 Depreciable amount remaining: $165,000 − $24,000 = $141,000 Remaining useful life: 3 years Year 4 depreciation: $141,000 ÷ 3 = $47,000 Wait — $47,000 is not in the options. Check the options: A=$24,000, B=$30,000, C=$40,000, D=$33,000.
Diagnose the discrepancy — this is a trap
If your calculation gives a number not in the options, you have likely made an error that corresponds to a wrong answer. Let's check what produces each option: D. $33,000 = original annual depreciation rate — the trap for candidates who forget to update the estimate A. $24,000 = the residual value — a nonsense answer that appears plausible if you confuse residual value with depreciation B. $30,000 = ($165,000 − $24,000) ÷ 4.7 years remaining... not clean C. $40,000 = likely from a different remaining life calculation Recheck: original 8-year life, 3 years elapsed. New total life is 6 years, meaning 6 − 3 = 3 years remain. $141,000 ÷ 3 = $47,000. But that's not an option. Actually — re-read the question. "Useful life of 6 years from date of acquisition." Date of acquisition = Jan 1 Year 1. 6 years from Year 1 = Year 6 end. Years remaining from Jan 1 Year 4 = 3 years. Calculation holds: $47,000. This appears to be a constructed example where the intended answer is closest to C ($40,000) — which would result from using $120,000 ÷ 3. Let's check: if residual was $45,000 instead: $165,000 − $45,000 = $120,000 ÷ 3 = $40,000. This illustrates how small misreads cascade.
The elimination hierarchy for CPA MCQs
- Identify what type of question it is (estimate vs principle vs error correction; asset vs liability; individual vs entity)
- Apply the rule directly if you know it — prospective for estimates, retrospective for errors, etc.
- Eliminate distractors: the original amount (what it was before the change), the residual value alone, and calculations that use the wrong base or wrong period
- Between two remaining options, choose the one that follows the most specific accounting rule — GAAP is precise; vague answers are usually wrong
- If you are genuinely uncertain after 90 seconds: guess, flag, and return if time permits. Leaving it blank guarantees zero; guessing gives 25% expected value.
The four distractor patterns CPA examiners use
| Distractor type | Example | How to spot it |
|---|---|---|
| Original value | The pre-change depreciation amount | Equal to what you would calculate before applying the new estimate |
| Partial calculation | Book value without subtracting residual | A suspiciously round number that's close to your answer |
| Wrong period | Full-year amount when question asks for half-year | Look for "on July 1" or "acquired partway through the year" |
| Wrong method | Straight-line answer when question implies double-declining | Re-read whether method is specified or implied |
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