Answer and Explanation:
The computation is shown below;
a.
Materials quantity variance is
= (Actual quantity used × Standard price) - (Standard quantity allowed × Standard Price)]
= (1550 × 9.00) - (1600 × 9.00)
= $(450.00)
= $450 favorable
b.
Direct materials price variance is
Materials Price Variance = (Actual quantity purchased × Actual price) - (Actual quantity purchased × Standard price)
= (1550 × 9.10) - (1550 ×$9.00)
= $155
= $155 unfavorable
c.
Total direct materials cost variance is
= Materials quantity variance + Direct materials price variance
= -$450 + $155
= -$295
= $295 Favorable