Answer:
1a. Product H Overhead cost per unit = [$85 * 0.4] = $34.00
Product L Overhead cost per unit = [$85 * 0.4] = $34.00
Predetermined overhead application rate = Estimated total manufacturing overheads / Total direct Labor hours
Predetermined overhead application rate = $1632000 / {[40000 units * 0.4]+[8000 units * 0.4]}
Predetermined overhead application rate = $1632000 / 19200 direct labor hours
Predetermined overhead application rate = $85 per direct labor hour
1b. Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Product H Â Product L
Overhead cost         $816,000   $816,000   Â
/No.of units            40000     8000  Â
Overhead cost per unit  $20.40    $102.00
                   Product H   Product L    Total
Total Overhead cost  $1,360,000  $272,000  $1,632,000
Note:
Total Overhead cost  = No.of units * Overhead cost per unit