### Important Mental Ability Topics for Competitive Exams

### Logical Reasoning, Arithmetic, Data Interpretation

### 16–20 of the 150 questions in the General Studies paper are from Mental Ability

### Number based questions: Arithmetic, Number series in Reasoning, Number Analogy, Number classification

### Basic Numerology: natural numbers, integers, integers, irrational numbers, prime numbers, even numbers, odd numbers

### Principles of divisibility

### Categories from 1 to 60, cubes from 1 to 20

### Addition (+), subtraction (-), multiplication (×), division (/) calculations should be done fast

### Letter series, letter analogy, letter classification, coding-decoding elements are based on the English alphabet.

### Learn A to Z, Z to A fast, position values from A to Z should be known. Position values are A-1, B-2, C-3 .... Y-25, Z-26

### The reverse position values of the letters A to Z should be known. A-26, B-25, .... Z-1

### Reverse syllables from A to M should be known. Reverse syllables are A-Z, B-Y, C-X ... M-N

### Practice Syllogisms, Seating Arrangements, Ages, Clocks, and basic arithmetic problems upto 10th standard level