NIMCET 2021
In this series, looking at the letter pattern, fill the blank in the middle of the series: ELFA, GLHA, ILJA, _____, MLNA
Answer (Detailed Solution Below)View answer ▾Hide ▴
Answer: Option D — KLLA
Detailed Solution
First letters E, G, I, ?, M go up by 2, so the blank starts with K.
The 2nd letter is always L and the 4th always A; the 3rd letter is the one after the 1st (F after E, H after G, J after I, so L after K).
Missing term: KLLA.
✓ Check
Applying the same rule after KLLA gives MLNA, the last term of the series.⚠ Common trap
(B) KLMA puts the letter two places after K in third position instead of the next letter.Quick tip
1st letter +2; 2nd letter always L; 3rd = letter after the 1st; 4th always A
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Series — Preparation
This question tests your understanding of Series, a key topic in the Logical Reasoning section. The detailed solution above uses a step-by-step approach to show the reasoning, and where available, a shortcut that helps you solve similar questions in under 90 seconds during the actual exam.
Series questions give a sequence of numbers, letters or a mix of both, and ask you to find the next term, a missing term, or the wrong term. This topic covers number series (based on differences, squares and cubes, multiplication, or mixed operations), letter series, alphanumeric series, and repeating letter patterns. Start by checking the differences between consecutive terms. If those don't show a pattern, check the second differences, ratios, squares and cubes nearby, or whether two separate series alternate. For letter series, convert letters to their alphabet positions and look for the number pattern. With practice, recognising common patterns becomes quick and these questions become reliable marks. Practise the series questions below, each with a step-by-step solution that shows the pattern.