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Correct / attempted
Tables till 30, squares till 50, cubes, roots and the fraction-percentage table — drilled in timed sprints. Five minutes a day turns calculation into recall. Beat your personal best.
Every Quant question in SSC, Bank or RRB hides three to six arithmetic steps. If each step costs you 8 seconds of working-out, a "45-second question" quietly becomes a 90-second question — and over 25 questions, that is the difference between finishing and leaving marks on the table. The fix is not solving harder: it is moving the basic building blocks — tables, squares, cubes and fraction-percentage equivalents — from calculation into instant recall. That happens through short, frequent, timed retrieval, which is exactly what this trainer runs.
| Building block | Target | Drill here |
|---|---|---|
| Multiplication tables | Up to 30 | Tables |
| Squares | Up to 50 | Squares · Roots |
| Cubes | Up to 20 | Cubes · Roots |
| Fraction ↔ percentage | 1/2 down to 1/16 | Fraction ↔ % |
| 2-digit add / subtract / multiply | Without pen | Add/Subtract · Multiply |
The single highest-leverage list in Quant — percentage, profit-loss and DI questions collapse into one-line fraction work once these are memorised (37.5% of 640 is just 3/8 × 640 = 240):
| Fraction | % | Fraction | % |
|---|---|---|---|
| 1/2 | 50% | 1/9 | ≈ 11.11% |
| 1/3 | ≈ 33.33% | 1/10 | 10% |
| 1/4 | 25% | 1/11 | ≈ 9.09% |
| 1/5 | 20% | 1/12 | ≈ 8.33% |
| 1/6 | ≈ 16.67% | 1/13 | ≈ 7.69% |
| 1/7 | ≈ 14.28% | 1/14 | ≈ 7.14% |
| 1/8 | 12.5% | 1/15 | ≈ 6.67% |
| 3/8 | 37.5% | 1/16 | 6.25% |
| 5/8 | 62.5% | 2/3 | ≈ 66.67% |
| 7/8 | 87.5% | 3/4 | 75% |
Run one 60-second sprint in your weakest drill every morning, then one Mixed sprint. Note the personal best the tool tracks for each drill-level-mode combination — beating yesterday's number is the whole game. Rotate difficulty up only when you hold 90%+ accuracy, because with negative marking a fast wrong answer costs more than a slow right one.
Convert calculation into recall: daily 60-second sprints on tables (till 30), squares (till 50), cubes (till 20) and the fraction-percentage table. Five to ten minutes daily beats an hour weekly — frequency builds recall, not session length.
Tables up to 30, squares up to 50, cubes up to 20, and fraction-percentage equivalents from 1/2 to 1/16 — the standard prep targets that cover most arithmetic inside Quant questions.
For single-step recall drills, under 4 seconds is exam-ready; under 2.5 seconds is elite. Real questions are multi-step, so each step must be near-instant.
The memorised equivalents like 1/8 = 12.5% and 1/12 ≈ 8.33% (full reckoner above). They turn percentage and DI calculations into one-line fraction work.
Accuracy first. With negative marking, a fast wrong answer is worse than a slower right one. Push pace only once you hold 90%+ accuracy.
Those build mechanical speed (entering and bubbling answers); this builds calculation recall (reaching the answer). Together they cover the whole exam-hall pipeline.