Join 60,000+ competitive exam aspirants
or with email
Your Cart
Subtotal₹0
Total₹0
Examoogle • User • info@examoogle.com • EE-2024-8821
Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
Join 60,000+ competitive exam aspirants
Which of the following options can replace the question mark (?) in the series: BDF 25, CEG 20, DFH 15, EGI 10, ?
FHJ 5
FHI 5
FGH 5
FGI 5
FHJ 5
Observe that the first three letters shift forward by 1 position each, while the number decreases by 5 consistently.
Observe that the first three letters shift forward by 1 position each, while the number decreases by 5 consistently.
Analyze the alphabetical progression
Looking at the first letter of each triplet: B(2), C(3), D(4), E(5) → next is F(6). Second letter: D(4), E(5), F(6), G(7) → next is H(8). Third letter: F(6), G(7), H(8), I(9) → next is J(10). The letters form the sequence FHJ.
Analyze the numerical progression
The numbers follow a simple arithmetic subtraction pattern: 25 - 5 = 20, 20 - 5 = 15, 15 - 5 = 10, 10 - 5 = 5. Therefore, the number attached to the sequence is 5.
B) FHI 5 is incorrect because the third letter must be J, not I. C) FGH 5 is incorrect because the second and third letters are wrong. D) FGI 5 is incorrect because the second and third letters are wrong.
A is correct because the sequence of letters follows a +1 increment for each position (B+1=C, D+1=E, F+1=G) resulting in FHJ, and the numerical value decreases by 5 consistently (10-5=5).
In alphanumeric series, always solve the letter pattern and the number pattern separately; solving them together often leads to confusion.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download • 100K+ Aspirants