Final answer:
The number of units started in the second department during April is 15,000 units. The number of units completed in the second department during April is 9,500 units. The number of units started and completed in the second department during April is 9,500 units.
Step-by-step explanation:
A) To calculate the number of units started in the second department during April, we need to subtract the beginning work-in-process units from the units transferred from the first department. Therefore, the number of units started in the second department during April is 19,000 - 4,000 = 15,000 units.
B) To calculate the number of units completed in the second department during April, we need to subtract the ending work-in-process units from the units started in the second department. Therefore, the number of units completed in the second department during April is 15,000 - 5,500 = 9,500 units.
C) The number of units started and completed in the second department during April is the same as the number of units completed in the second department. Therefore, the number of units started and completed in the second department during April is 9,500 units.