Answer:
Materials Price Variance = (SP-AP) *AQ
= (3.75 - 4.00) * 36,000
= 9,000 Unfavorable
Materials Quantity Variance = (SQ-AQ) * SR
= (15,000 * 2.5) - 36,000) * 3.75
= 5625 Favourable
Materials cost variance = 9,000 U + 5625 F
Materials cost variance = 3375 U