ESIC UDC: General Intelligence and Reasoning Ability for ESIC UDC

General Intelligence and Reasoning Ability tests pattern detection and logical deduction under time pressure. ESIC UDC includes series, analogies, coding-decoding, blood relations, directions, syllogism, inequalities, seating arrangements and puzzles.

Core rules to apply

• Alphabet positions: A=1 to Z=26; reverse position = 27 minus forward position. Use EJOTY: E=5, J=10, O=15, T=20, Y=25.
• Coding-decoding: check letter shifts, reversal and position sums before assuming a word pattern.
• Syllogism: draw the minimal Venn diagram. "Only a few" means some are and some are not; do not convert it to "all".
• Inequality: read a chain from left to right, and remember that "≥" allows equality while "<" does not.
• Seating: fix one person as anchor and mark facing direction; left and right reverse when people face south.

Worked example

Find the next term: 2, 6, 12, 20, 30, ?. The differences are 4, 6, 8, 10, so the next difference is 12. Therefore 30 + 12 = 42. The pattern is n(n+1): 1×2=2, 2×3=6, 3×4=12, and 6×7=42.

Traps that cost marks

• Solving a blood-relation question from the speaker's viewpoint when the question asks for the relation of another person.
• Missing "facing north/south" in seating and floor puzzles.
• Assuming every stated pair in syllogism must appear in the Venn diagram.
• Choosing an answer before checking all options in odd-one-out and analogy questions.
• Treating "some A are B" as "some B are not A", which is not valid.