Overtime labor cost for special order

Steps:

• Basic hourly rate: $30; overtime rate with 40$30 × 1.4 = $42 per hour.
• Overtime hours per worker: 50 - 40 = 10 hours.
• Overtime pay per worker: 10 × $42 =$420.
• Total overtime pay for 20 workers: 20 × $420 =$8,400.

Not enough information: Standard calculation yields $8,400 for overtime wages attributable to special order, but this is not among choices; ambiguous how to value "wages paid to meet special order" (e.g., premium only, prorated total, or incremental cost).

Final answer: Not enough information.