Question

If Troy is currently producing 900 bolts and wishes to increase bolt production to 1,300, what will be the trade-off, or opportunity cost, in terms of wing nuts

Answer 1

we are missing Troy's production possibilities frontier, but we can make one up that can serve as an example:

Troy's total production:

bolts Δ in bolts wing nuts Δ in wing nuts

500 200 1,900 -300

700 200 1,600 -300

900 200 1,300 -300

1,100 200 1,000 -300

1,300 200 700 -300

1,500 200 400 -300

Troy's opportunity cost of producing 1 bolt is 300 wing nuts /200 bolts = 1.5 wing nuts.

If Troy increases the production of bolts by 1,300 - 900 = 400 units, then the trade off will be 400 x 1.5 = 600 wing nuts.

Your numbers are probably different, but you can adjust them using the same formula.