List of top General Aptitude Questions on Sequence and Series

What should come in place of the question mark (?) in the following alphanumeric series: A1X, B4P, E25J, J100F, ?
If the sequence 2, 5, 8, 11, ... follows a pattern, what is the 10th term?
Find the missing term: AZ, BY, CX, DW, ?

Which letter replaces the question mark? A, D, G, J, M, ? 
 

In a sequence, each term after the first is obtained by adding the product of the previous two terms to the previous term. If the first two terms are 1 and 2, what is the fifth term?
8, 6, 9, 23, 87, ? — Find the missing number.
What will be the next number in the series: 3, 6, 10, 17, 26, ?
What comes next in the series?
2, 6, 12, 20, 30, ?

Complete the series: AZ, BY, CX, ?

Find the missing number in the series: $3, 6, 18, 72, ?$
4, 9, 16, 25, ?, 49 — Find the missing number.

The figures I, II, and III are parts of a sequence. Which one of the following options comes next in the sequence at IV?


 

The sum of the following infinite series is: \[ 1 + \frac{1}{1!} + \frac{1}{2!} + \frac{1}{3!} + \frac{1}{4!} + \frac{1}{5!} + \dots \]
Given an input line of numbers and words, a machine rearranges them following particular rule in each step. Here is an illustration of an input and rearrangement sequence (Step 1 to Step 5) :
Input: 61 wb ob 48 45 29 34 sb pb lb
Step 1: lb wb ob 48 45 29 34 sb pb 61
Step 2: lb ob wb 45 29 34 sb pb 61 48
Step 3: lb ob pb wb 29 34 sb 61 48 45
Step 4: lb ob pb sb wb 29 61 48 45 34
Step 5: lb ob pb sb wb 61 48 45 34 29
Step 5 is the last step of the above arrangement.
Based on the rules followed in the above steps, answer the following question :
Input: cb kb eb 58 49 23 38 jb nb gb 69 82
Which of the following represents the position of 58 in the fourth step? (Step-5 is the last step of the arrangement.)

What comes in place of the question mark (?) in the series given below?
\(B2D, C3F, E5J, G7N, ?, M13Z\)

What will be the next number in the series:
3, 6, 10.5, 17, 26, ?

What should come in the place of the question mark (?) in the following alphanumeric series?
\(A1X, B4P, E25J, J100F, ?\)

The following states were formed after 1960. What was the correct sequence of their formation?
(A) Haryana (B) Sikkim (C) Nagaland (D) Goa

The pie charts depict the shares of various power generation technologies in the total electricity generation of a country for the years 2007 and 2023. 
 


The renewable sources of electricity generation consist of Hydro, Solar, and Wind. Assuming that the total electricity generated remains the same from 2007 to 2023, what is the percentage increase in the share of the renewable sources of electricity generation over this period?}

Sequence the following sentences in a coherent passage. 
P: This fortuitous geological event generated a colossal amount of energy and heat that resulted in the rocks rising to an average height of 4 km across the contact zone.
Q: Thus, the geophysicists tend to think of the Himalayas as an active geological event rather than as a static geological feature.
R: The natural process of the cooling of this massive edifice absorbed large quantities of atmospheric carbon dioxide, altering the earth’s atmosphere and making it better suited for life.
S: Many millennia ago, a breakaway chunk of bedrock from the Antarctic Plate collided with the massive Eurasian Plate.

In the sequence (6, 9, 14, x, 30, 41), a possible value of (x) is:
If '→' denotes increasing order of intensity, then the meaning of the words ([ {walk} to {jog} to {sprint} ]) is analogous to ([ {bothered} to ______ to {daunted} ]). Which one of the given options is appropriate to fill the blank?
If ‘→’ denotes increasing order of intensity, then the meaning of the words [talk → shout → scream] is analogous to [please → \_\_\_\_\_ → pander]. Which one of the given options is appropriate to fill the blank?
If two distinct non-zero real variables \( x \) and \( y \) are such that \( (x + y) \) is proportional to \( (x - y) \), then the value of \( \frac{x}{y} \) is: