Comprehension Passage
Directions: Read the following instructions carefully and answer the following questions.
Three series I, II, and III are given below each of them having different logic, one term is the missing number.
Series I: P, 61, 181, 721, 3601, 21601
Series II: 5.5, 10.5, 38.5, 55.5, 181.5, (7P + Q)
Series III: (2Q + 1), 8, 24, 120, 12R, 9240
If R/2 is the first term of the new series which follows the same logic as series III find the difference between the 4th term and 3rd term in that series.
1
720
2
960
3
840
4
1080
5
600