Aptitude: Data, Series and Logical Deduction
Aptitude is a short section, usually 10 questions, but it separates candidates because it tests reasoning rather than memorised content. Expect data interpretation, numerical reasoning, series and coding-decoding, syllogisms, puzzles, and pattern or figure-based reasoning.
Data interpretation
Tables, bar charts, and pie charts with percentage or ratio questions. Read the axes, units, and base value before calculating; many items ask for a percentage change rather than an absolute value.
Numerical and logical reasoning
Number and letter series, analogies, blood relations, direction sense, coding-decoding, and syllogisms. Write down the given relations instead of doing them mentally.
Puzzles and patterns
Figure series, odd-one-out, and arrangement puzzles reward a systematic check of one attribute at a time: shape, count, rotation, shading, or position.
Worked example
Find the next term: 2, 6, 12, 20, 30, ?. The differences are 4, 6, 8, 10, increasing by 2 each time. The next difference is 12, so the next term is 30 + 12 = 42.
Traps
- Assuming a pattern from too few terms; check it against every given term.
- Mixing percentage points with percent change.
- In syllogisms, adding real-world knowledge that the premises do not state.
- In data sets, missing a footnote or a change of units.
Because VITEEE has no negative marking, a reasoned guess is better than a blank, but eliminate options first.