Final answer:
The logical explanation for the direct materials cost variance of $3,750 U can be attributed to the company using a greater quantity of direct materials than allowed by the standards.
Step-by-step explanation:
The logical explanation for the direct materials cost variance of $3,750 U is that the company used a greater quantity of direct materials than allowed by the standards. The standard quantity of direct materials for each unit is 2 pounds, but the company actually used 9,500 pounds for the production of 5,000 units. This means the company used an average of 1.9 pounds per unit, which is higher than the standard.