Q. You are given two identical sequences in two rows:
Sequence-I: 8 4 6 15 52.5 236.5
Sequence-II: 5 A B C D E
What is the entry in the place of C for the Sequence-II?
(a) 2.5
(b) 5
(c) 9.375
(d) 32.8125
Correct Answer: (c) 9.375
Question from UPSC Prelims 2021 CSAT Paper
Explanation :
The inherent pattern in the two sequences has been represented below.
Sequence I
8 × 0.5 = 4
4 × 1.5 = 6
6 × 2.5 = 15
15 × 3.5 = 52.5
52.5 × 4.5 = 236.25
Sequence II
5 × 0.5 = 2.5 (A)
2.5 × 1.5 = 3.75 (B)
3.75 × 2.5 = 9.375 (C)
