Answer:
$33,500
Step-by-step explanation:
Beginning PBO. ?
Service cost. ?
Interest cost. 8,500
Retiree benefits paid. (10,000)
Ending PBO. $117,000
*PBO, 1/1 = $8,500/10% = $85,000
Therefore, beginning PBO = $85,000
**$117,000 + $10,000 - $8,500 - $85,000 = $33,500
Service cost = $33,500