Answer:
1. 60,000 hours
2. $210,000
3. $10,500 Unfavorable
Explanation:
1. Standard Hours = 3 per unit
Actual production units = 20,000
Standard Hours for actual production = Standard Hours × Actual production units
= 3 × 20,000
= 60,000 hours
2. Applied variable overhead = Standard hours × Standard Rate per hour
= 60,000 × $3.50
= $210,000
3. Total Variable overhead variance = Applied variable overhead - Actual variable overhead overhead
= $210,000 - $220,500
= $10,500 Unfavorable