Answer:
1,950 Units
Explanation:
The difference between the opening and closing balances of units in the blending department is as a result of the number of units transferred to the department and the additional units started by the department.
Let the number of units transferred out of the department be Y
Then;
400 + 1800 - Y = 250
Y = 400 + 1800 - 250
Y = 1950
The number of units transferred out of the blending department during the month is 1950.