A work package has earned value of $180,000 and actual cost of $200,000. What is the CPI?
Correct Answer
B) 0.90
CPI is EV / AC = $180,000 / $200,000 = 0.90.
Why This Is the Correct Answer
CPI is EV / AC = $180,000 / $200,000 = 0.90.
Why the Other Options Are Wrong
Option A: 1.10
earned value cpi, choice a: the number 1.10 comes from $200,000 / $180,000.
Option C: 1.20
earned value cpi, choice c: 1.20 backs into 1.33 when divided by 180000 / 200000; the accepted setup gives 1 on that same base.
Option D: 0.80
earned value cpi, choice d: 0.80 backs into 0.89 when divided by 180000 / 200000; the accepted setup gives 1 on that same base.
Memory Technique
Keep a warning sign beside earned value CPI: if one number is skipped, the option drifts away from 0.90.
Reference Hint
Open Construction Jobsite Management, 5th Ed. (2024); use by topic index - labor hours / productivity / earned value / job cost to confirm that CPI is EV / AC = $180,000 / $200,000 = 0.90.
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