Drill types
All 21 drill types, and exactly how long you get
ComputePrep serves one drill kind a day at three difficulties, rotating through all 21 kinds below. Every time limit is published here — nothing about the clock is a surprise, and the limit you see in the app is the deadline our server enforces.
Two paths, one daily. The Vedic path is the technique curriculum — five sutra-based shortcuts that make a 15-second answer physically possible. The Exam path is the paper itself — sixteen drills that map to marks on IBPS, SBI, SSC and railway prelims. The rotation interleaves both, so a week gives you technique and application rather than one of them seven times.
The Vedic path — 5 technique drills
These are the shortcuts the exam never teaches you. Each walkthrough shows the sutra steps, never long multiplication — the method is the product. Full worked examples of all five →
| Drill | What it trains | Easy | Medium | Hard |
|---|---|---|---|---|
| Vedic Squaring | Squaring by Ekadhikena (numbers ending in 5: 75² = 5625) and Yavadunam (numbers near a base: 88² = 7744). | 15s | 20s | 30s |
| Complementary Products | Antyayordashake — same leading part, units adding to 10: 43 × 47 = 2021, in one step. | 15s | 20s | 30s |
| Difference of Squares | Sankalana-Vyavakalanabhyam — multiply through the midpoint: 47 × 53 = 50² − 3² = 2491. | 15s | 20s | 30s |
| Nikhilam | Multiplying near a base using deficits: 97 × 96 = 9312 in two steps, no paper. | 20s | 25s | 35s |
| Crosswise Multiplication | Urdhva-Tiryagbhyam, the general vedic method that multiplies any two numbers in one line — with × 11 as its easy variant. | 20s | 30s | 45s |
The Exam path — 16 paper drills
These are the question types a prelims quant section actually asks. Each is a separate drill kind on purpose: the app times you per kind, so "you are slowest at time & work" is a thing you can find out and fix, rather than a vague sense that quant is hard.
Calculation speed
| Drill | What it trains | Easy | Medium | Hard |
|---|---|---|---|---|
| Speed Arithmetic | Mixed mental arithmetic on a short clock — the warm-up that everything else sits on. | 15s | 20s | 30s |
| Percentages | Percentage values, increases and decreases done as fractions you already know, not long multiplication. | 20s | 30s | 40s |
| Squares, Cubes & Roots | The recall table every fast solver has, plus deriving what you have not memorised. | 15s | 20s | 30s |
| Simplification (BODMAS) | Order of operations under time pressure. The left-to-right trap is always planted among the options. | 20s | 30s | 45s |
| Averages | Means, and the change-in-average pattern where the classic error is adding the change without dividing it. | 20s | 30s | 40s |
Question types the paper asks
| Drill | What it trains | Easy | Medium | Hard |
|---|---|---|---|---|
| Quadratic Comparison | The banking "quadratic equations" set: solve for x and y, then pick the correct relation (including "no relation can be established"). | 30s | 40s | 50s |
| Table DI | Data interpretation from a table — the commonest DI surface in banking prelims. | 40s | 50s | 65s |
| Caselet DI | Data interpretation from a written caselet, where half the work is extracting the numbers. | 40s | 50s | 65s |
| Profit & Loss | Cost price, selling price, markup and discount — including successive discounts. | 35s | 45s | 60s |
| Simple & Compound Interest | SI and CI, and the difference-between-the-two question that follows from them. | 40s | 50s | 65s |
| Time & Work | Work rates, combined work and partial work — the efficiency method rather than LCM guessing. | 45s | 55s | 70s |
| Time, Speed & Distance | Speed, distance, relative speed and the train problems built on them. | 40s | 50s | 65s |
| Mensuration | Area, perimeter and volume of the standard figures, without reaching for a formula sheet. | 35s | 45s | 60s |
| Boats & Streams | Upstream and downstream speeds — the pattern that is trivial once seen and slow every time it is not. | 40s | 50s | 65s |
| Permutation & Combination | Arrangements and selections. The nPr-for-nCr mix-up is always among the options. | 45s | 55s | 70s |
| Probability | Probability with exact fraction answers — no decimal rounding to hide behind. | 45s | 55s | 70s |
How the questions are made
Every drill is generated fresh and verified by machine before it is served — the answer is computed from the printed expression, not written by hand, and the counting kinds are re-checked by enumeration in our test suite. That is why the questions do not repeat and cannot be memorised, and why we can publish a time limit and mean it.
The wrong options are built from the classic careless errors for that specific kind. Picking one is diagnostic: it tells you which habit is costing you marks.
Play today's drill →Looking for reasoning, not quant? Our sister product Deduce covers the logical-reasoning section with 27 reasoning puzzle types — seating arrangement, floor puzzles, syllogism, data sufficiency, coding-decoding, blood relations and more, each proven to have exactly one solution. Quant speed here, reasoning next door.