SSC CHSL 2025 PYQ — Question 43

SSC CHSL - 18 Nov 2025 - Shift 1 • Reasoning • Q43

What should come next in the following series?
A4, C16, F36, J64
, ?

Show answer & explanation

Correct answer: A

Explanation

Given: A4, C16, F36, J64, ?

Analyze the letter pattern:

The letters are: A, C, F, J, ?

In the alphabet: A(1), C (3), F (6), J (10)

Differences: 2, 3, 4

Next difference = 5

So, next letter is : J(10)+5= O(15)

Analyze the number pattern:

4 =22

16=42

36=62

64=82

Numbers are squares of continuous even numbers starting from 2.

So, next number is: 102=100

Therefore, next term is O100

Hence, the correct answer is Option (1).