Logical Reasoning
NESW Circle Trick — Draw a '+' sign: North top, East right, South bottom, West left. For right turns add 90° clockwise (N→E→S→W→N); left turns go anti-clockwise. Saves 10+ seconds per direction problem.
Blood Relation Gender Decode — Uncle/Nephew/Brother/Son/Father/Grandfather = Male ONLY. Aunt/Niece/Sister/Daughter/Mother/Grandmother = Female ONLY. Cousin/Parent/Child/Sibling = Check context. Eliminates 60% wrong options instantly.
Series Gap Method — For number series, write differences between consecutive terms in a row below. If no pattern, find differences of differences (second-order). 90% of exam series solve within two levels.
Coding +1/-1 Quick Check — If A=1, B=2...Z=26, most coding questions shift by ±1 to ±5. Test +1 and -1 first on the first letter before trying complex patterns. Cracks 40% of coding problems in 15 seconds.
Venn Diagram Only Formula — For "only A" = Total A − (A∩B) − (A∩C) + (A∩B∩C). The +intersection at end is the key trick students miss. Write this on rough sheet first.
Syllogism No-Some Conversion — "No A is B" = "No B is A" (convertible). "Some A is B" = "Some B is A" (convertible). "All A is B" ≠ "All B is A" (NOT convertible). Eliminates 2 options immediately.
Commerce
Business Organization SPJC — Remember forms as Sole (1 owner), Partnership (2-20), Joint Stock (min 2/7 members), Cooperative (min 10 members). Sequence by increasing member count for comparison questions.
Capital Account Golden Rule — Capital A/c format: Opening + Additional Capital + Profit − Drawings − Losses = Closing Capital. Write this L-to-R formula on top of every capital account question first.
6 Business Services Mnemonic: BITE-WIT — Banking, Insurance, Transport, Electricity, Warehousing, IT/Communication, Trade Auxiliaries. Covers 95% of service-type identification MCQs.
Partnership Profit Ratio — If capitals are equal but time differs: Profit ratio = Time ratio. If time equal but capitals differ: Profit ratio = Capital ratio. If both differ: Multiply Capital × Time for each partner's ratio.
Company Debenture vs Share — Debenture holders = Creditors (get fixed interest, paid before dividend, no voting). Shareholders = Owners (get variable dividend, voting rights). This distinction solves 8-10 MCQs per exam.
Balance Sheet Equation Check — Always verify: Total Assets = Total Liabilities. On multiple-choice, calculate both sides; if unequal, that option is wrong. Eliminates 50% wrong B/S options in 20 seconds.