Answer:
Variable overheads efficiency variance = $13,040 favorable
Explanation:
<em>Variable overheads efficiency variance is the difference between the standard hours of actual output and actual hours valued at the standard variable overhead rate per hour </em>
Hours
5,900munits should have taken (5,900× 0.9) 5,310
but did take <u> 2050 </u>
efficiency variance in hours 3,260 favorable
Standard rate per hour <u> $4.00 </u>
Variable overheads efficiency variance <u> 13,040 favorable </u>
Variable overheads efficiency variance = $13,040 favorable