SSC CGL Maths Short Tricks and Formulas: Mathematical formulas, shortcuts and tricks are indispensable part for tackling the quantitative aptitude section of competitive exams like SSC CGL. These techniques not only save time but also boost accuracy, thereby enhancing overall scores. Here are SSC CGL Short Tricks and Formulas tricks to master for effective exam preparation for the upcoming SSC exam .
SSC CGL Maths Short Tricks | |
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Trick/Technique | Description |
Percentage Calculations | Move the decimal one place left to find 10%. Example: 10% of 350 is 35. |
Simplification Techniques | Break down complex expressions using distributive property and common factors. |
Multiplication Shortcuts | Break numbers into simpler components. Example: (30 + 5) × 25 = (30 × 25) + (5 × 25) |
Division Tricks | Use divisibility rules (2, 3, 5, 9, 10) to quickly determine divisibility. |
Quick Addition/Subtraction | Group numbers (hundreds, tens, units) to simplify calculations. |
Square and Cube Roots | Approximate square roots by knowing squares of numbers close to the given value. |
Time and Distance Problems | Solve using relative speed concepts for moving objects in different directions. |
Profit and Loss | Calculate selling price for a 25% profit by multiplying cost price by 1.25. |
Averages | Compute weighted averages by multiplying values by weights and dividing by total weight. |
Data Interpretation | Analyze graphs to understand trends and answer related questions efficiently. |
Formulas Of Mensuration 2D:
Formulas Of Mensuration 2D | ||
Name | Perimeter | Area |
Rectangle | 2 (a + b) | ab |
Square | 4a | a2 |
Triangle | a + b + c = 2s |
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Right triangle | b + h + d | ½ bh |
Equilateral triangle | 3a | 1 . ½ ah 2. √3/4 a2 |
Isosceles right triangle | 2a + d | ½ a2 |
Parallelogram | 2(a + b) | ah |
Rhombus | 4a | ½ d1d2 |
Trapezium | Sum of its four sides | ½ × h × (a + b) |
Circle | 2πr | πr2 |
Semicircle | πr + 2r | ½ πr2 |
Ring (Shaded region) | ———- | π(R2 – r2) |
Sector of a circle | l + 2r where l = (θ/360) × 2πr | θ/360° × πr2 |
Formulas Of Mensuration 3D:
Formulas Of Mensuration 3D | |||
Solid | Lateral/Curved Surface Area | Total Surface Area | Volume |
Cuboid | 2(l + b)h | 2(lb + bh + hl) | lbh |
Cube | 4l2 | 6l2 | l3 |
Right circular cone | 2πrh | 2πr(r + h) | πr2h |
Right circular cone | πrl where l = slant height and l = √(r2 + h2) | πrl + πr2 or πr(l + r) | 1/3 πr2h |
Sphere | 4πr2 | 4πr2 | 4/3πr3 |
Hemisphere | 2πr2 | 3πr2 | 2/3πr3 |
Hollow cylinder | 2π(R + r)h Where R = external radius and r = internal radius | 2π(R + r)h + 2π(R2 – r2)h | π(R2 – r2) |
Frustum of right circular cone | π(R + r)l where R & r are radii of base and R>r and l = √(h2 + (R – r)2 | πl(R + r) + πr2 + πR2 | 1/3πh(R2 + r2 + Rr) |
Other SSC CGL Maths Formulas:
Other SSC CGL Maths Formulas | |
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