How to Solve Quantitative Aptitude 2x Faster in SSC CGL Tier 1

### Speed Arithmetic for SSC CGL Tier 1

Time is the biggest differentiator in SSC CGL. Completing 25 quantitative questions within 18 minutes gives you breathing room for reasoning and English.

#### Top Speed Techniques:
1. **Digital Root (Casting Out Nines)**: Instantly verify multi-digit calculations without computing full answers.
2. **Fraction to Percentage Conversions**: Memorize values up to 1/20 like muscle memory.
3. **Option Elimination via Unit Digits**: Eliminate 2 out of 4 options in seconds by evaluating just the units place.
4. **Pythagorean Triplets**: Memorize common triplets (3-4-5, 5-12-13, 7-24-25, 8-15-17, 9-40-41) for lightning geometry and trigonometry solutions.