Comprehension Passage
Directions: Solve the given missing numbers series I and II and answer the following questions given below.
Series I: A, 35, 77, 143, 221, 323
Series II: 3A, 90, 2A, 120, 24, C2
If series III starts with a number (A + C) follows the same pattern as series II from the start . Find the third number in series III.
1
30
2
18
3
15
4
24
5
12