If you have CGPA of 2.94 in your 100 level and you get GPA of 4.0 in your first semester 200 level. What would be your active CGPA? The total credit unit in 100 level is 34 and the first semester 200 level is 20

Total Grade Points (100 level) = CGPA (100 level) × Total Credit Units (100 level)
Total Grade Points (100 level) = 2.94 × 34
Total Grade Points (100 level) = 99.96

Total Grade Points (200 level, 1st sem) = GPA (200 level, 1st sem) × Total Credit Units (200 level, 1st sem)
Total Grade Points (200 level, 1st sem) = 4.0 × 20
Total Grade Points (200 level, 1st sem) = 80

Overall Total Grade Points = Total Grade Points (100 level) + Total Grade Points (200 level, 1st sem)
Overall Total Grade Points = 99.96 + 80
Overall Total Grade Points = 179.96

Overall Total Credit Units = Total Credit Units (100 level) + Total Credit Units (200 level, 1st sem)
Overall Total Credit Units = 34 + 20
Overall Total Credit Units = 54

Active CGPA = Overall Total Grade Points / Overall Total Credit Units
Active CGPA = 179.96 / 54
Active CGPA = 3.33259...

Rounding to two decimal places, your active CGPA is:
Active CGPA = 3.33