McKinsey SolveBCG CaseyBain online test
Timed simulations in the format each firm uses: Solve-style games, a Casey-style chatbot case with exhibits, and Bain-style aptitude sets. Open a full demo case free, no card needed.
Preparing for Solve or a Bain test? Pick your test
Study informationSecond, Ecotopia will generate revenue by selling carbon credits from the biodiversity complex—revenue it can then use to fund additional biodiversity projects. As part of its 10-year strategy, the government also plans to start allocating 20% of annual O&G export revenues towards biodiversity projects, beginning in Year 8.
Why practice the format
Most candidates can do the math. What costs time is meeting a new interface under a countdown for the first time. Rehearse the format and test day feels familiar.
Pick your test
Each firm uses a different format, so practice is sold per test. Every page below lists exactly what you get before you pay.
BCG
One business case, one question at a time, answers final once sent, then a short recorded recommendation.
We train it with 29 full chat cases, each with its own exhibits and timer.
From $99 · one-time payment
McKinsey
You research, calculate and choose inside an unfamiliar game interface, with no outside tools allowed.
We train it with 23 scenarios built on the same task types.
From $99 · one-time payment
Bain
The math and logic are not advanced. The pressure comes from the clock, section after section.
We train it with 23 timed sets and 3 mock tests.
From $20 per module · one-time
Not sure which test you will get? See which online test McKinsey, BCG and Bain send.
Test lengths come from the firms' own descriptions and candidate reports, cited in our guide to MBB online assessments.
See it before you pay
These are unedited screens from the free BCG Casey-style demo case. Every paid case runs the same way.
No card. Runs in Chrome, Edge or Safari on a laptop.
Real screen from the free demo case: the chat question on the left, the exhibit it refers to on the right.
Step01 / 03
Each case opens its charts and tables as the questions need them, the way the real chat case does.
Step02 / 03
Type or select your answer while the timer runs. Once you send it, you move on, as in the test.
Step03 / 03
Your result breaks down question by question, so you know which skill to drill before the next case.
What you get
Counts come from our live question bank on 2026-09-23, and we update them when content changes. How we build and count the material
Chatbot cases with exhibits, typed and multiple-choice answers
29 cases · 275 questions
$99 / $199 / $350 · Starter 1 year · Complete, Ultimate lifetime
Redrock study, Sea Wolf, Sustainable Futures Lab and Ecosystem creation scenarios
23 scenarios
$99 Basic / $159 VIP · Basic 1 year · VIP lifetime
Numerical, verbal, logical, situational judgement, data interpretation and case-study sets, plus mock tests
476 questions · 23 sets · 3 mocks
$20 per module / $99 all / $49 mocks · Modules 1 year · Comprehensive lifetime
| Test | What you practice | Count | Price (USD) | Access |
|---|---|---|---|---|
| BCG Casey | Chatbot cases with exhibits, typed and multiple-choice answers | 29 cases · 275 questions | $99 / $199 / $350 | Starter 1 year · Complete, Ultimate lifetime |
| McKinsey Solve | Redrock study, Sea Wolf, Sustainable Futures Lab and Ecosystem creation scenarios | 23 scenarios | $99 Basic / $159 VIP | Basic 1 year · VIP lifetime |
| Bain aptitude | Numerical, verbal, logical, situational judgement, data interpretation and case-study sets, plus mock tests | 476 questions · 23 sets · 3 mocks | $20 per module / $99 all / $49 mocks | Modules 1 year · Comprehensive lifetime |
| Case library | Full case studies with exhibits and model answers | 63 cases | Free | Free account |
| Drills | Mental math (10 skills), chart reading and market sizing | 582 questions | Free | Free account |
Start free
Prompt, exhibits and a model answer for every case, interviewer-led and candidate-led. Read online or download the PDF.
The complete demo case with exhibits and timer. No card, no purchase.
Open the demo case500 mental math, 50 chart reading and 32 market sizing questions, free with an account.
Start a drillPlain definitions of the words the tests and guides use, from Redrock to dataset selection.
Read the glossaryFounded in 2026
Not affiliated with or endorsed by McKinsey, BCG or Bain. Our team writes original practice material to match each test's public format.
About DrillCaseEvery count on this site comes from one counted source, last checked on 2026-09-23. No rounded-up claims.
Our methodologyWe do not show star ratings, user counts or pass rates, because we have not verified any yet. The free demo is our evidence.
Editorial policy7-day money-back on the McKinsey VIP tier and the All-Access Pass, processed within 2 business days. Other tiers are final sale.
Refund policyPricing
Buy the product for the test you were invited to. If more than one firm is on your list, the All-Access Pass covers all three for one payment.
The most complete tier of each product
Smaller tiers start at $20 for one Bain module and $99 for 14 BCG cases. Compare every plan
Covers every test
$250one payment · lifetime access
Refund within 7 days of purchase. Refund policy
Questions
Something else? Email support@drillcase.com.
No. DrillCase is an independent practice platform. It is not affiliated with, endorsed by or connected to McKinsey, BCG or Bain. The practice material is written by our team to match the publicly described format of each test; no real test questions are used.
We copy the format: the chat-led case with exhibits and a countdown for BCG Casey, the game-based tasks for McKinsey Solve, and timed multiple-choice sections for Bain. We cannot copy the real questions or the firms' own scoring, so treat your DrillCase score as practice feedback, not a prediction of your result.
29 BCG Casey-style cases with 275 questions, 23 McKinsey Solve-style scenarios, 476 Bain-style aptitude questions in 23 timed sets plus 3 mock tests, a free library of 63 case studies and 582 free drill questions. Counted on 2026-09-23.
No. You pay once. Casey Complete and Ultimate, McKinsey VIP, Bain Comprehensive and the All-Access Pass are lifetime access; Casey Starter, McKinsey Basic, single Bain modules and the mock tests give 1-year access. Prices run from $20 for one Bain module to $350 for every BCG case.
Yes. One full BCG Casey-style case runs free, with no card. With a free account you also get one McKinsey Solve-style scenario, the library of 63 case studies and 582 drill questions.
The McKinsey Data Analysis VIP tier ($159) and the All-Access Pass ($250) carry a 7-day money-back guarantee: email support within 7 days of purchase and the refund is processed within 2 business days. BCG case tiers, Bain modules and the McKinsey Basic tier are non-refundable, so try the free demo first.
Buy the product for the test named in your invitation email. If you expect tests from more than one firm, the All-Access Pass ($250) covers every product; the most complete tier of each, bought separately, adds up to $657.
Use a laptop or desktop with Chrome, Edge (v79 or later) or Safari (v15.4 or later), the same set-up the real online tests expect. You can browse the site and read guides on a phone.
Free guides
Format, timing, scoring and a prep plan for each firm's online test, with sources.
Every online test MBB uses before interviews (Solve, Casey, Sova and TestGorilla), in funnel order, with timelines and where to start your prep.
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One full demo case shows you the format and the pace. Then buy only the practice for the test you are taking.
