Question

Which of the following will come in place of the question mark(?) in the following sequence?
6C7,8FIO, 11J14, 15019,?

• A. 25U20
• B. 20U25
• C. 20U24
• D. 19U25

Answer 1

The Correct Option is B

Let's analyze the given sequence step by
Pattern Analysis:
First number (6, 8, 11, 15):
The differences between the first numbers are:
 8 - 6 = 2
 11 - 8 = 3
 15 - 11 = 4
 So, the next difference should be +5, meaning the next first number is 15 + 5 = 20.
Letter (C, F, J, O):
The alphabetical sequence is:
C → F (difference of +3 letters)
F → J (difference of +4 letters)
J → O (difference of +5 letters)
The next difference should be +6 letters, meaning O + 6 = **U**.
Last number (7, 10, 14, 19):
The differences between the last numbers are:
10 - 7 = 3
14 - 10 = 4
19 - 14 = 5
The next difference should be +6, meaning 19 + 6 = 25.
The next term in the sequence is 20U25.