Answer and Explanation:
Computation of service years
Year Jim Paul Nancy Dave Kathy Total × Cost Amortization
2014 1 1 1 1 1 5 × 3,000 $15,000
2015 1 1 1 1 1 5 × 3,000 $15,000
2016 1 1 1 1 1 5 × 3,000 $15,000
2017 1 1 1 1 4 × 3,000 $12,000
2018 1 1 1 3 × 3,000 $9,000
2019 1 1 2 × 3,000 $6,000
Total $72,000
Future years of service
Jim 3
Paul 4
Nancy 5
Dave 6
Kathy 6
Total 24
Working note:-
Cost per service year = Benefit obligation ÷ Total
= $72,000 ÷ 24
= $3,000