Answer:
c. $1,800 favorable
Explanation:
Given
Direct materials 6 pounds at $0.90 per pound = $5.40
Direct labor 0.5 hour at $12.00 per hour = $6.00
Manufacturing overhead 0.5 hour at $4.80 per hour = $2.40
Actual units produced 10,000
Actual quantity purchased 58,000 pounds
Actual price $1.00 per pound
Actual hours 4,900
Actual Direct labor costs $56,350
Variable manufacturing overhead costs $15,000
fixed manufacturing overhead  $10,400
Formula to use
Direct materials quantity variance =(Standard Price * Actual Quantity)-(Standard Price * Standard Quantity)
Calculations
Direct materials quantity variance =
(0.9*58000)- (0.9 *6 pounds *10,000 units)
= 52,200- 54000
= 1,800 fav as standard quantity allowed is more than actual quantity used it is favorable.