Bain preparation · TestGorilla
Clear thinking.
Under real pressure.
Read the evidence. Make the call. Practise forward-only questions with a real section deadline.
No sign-up · Worked solutions included · Original CaseStar questions
Revenue by quarter · £m
How much did revenue grow from Q2 to Q3?
Learn to spot the right denominator—not just the right number.
An unscored example explains the controls before each section.
Submit once. Move forward. The section clock keeps running.
Review the method, the tempting wrong answer, and what to practise next.
Numerical methods · Free
Understand the calculation. Then transfer it.
Three short lessons on percentage bases, weighted rates and commercial maths. Twelve original problems: type your answers, work through the method and test it in a new situation.
Explore numerical lessons →Problem solving · Free
Find an order that actually works.
Build a schedule and test every constraint in the free lesson, or try four original problem-solving questions with worked solutions.
Build your practice
The sections that matter to you.
Your Bain invitation determines your actual assessment. These are CaseStar practice configurations—not a guaranteed Bain section list.
The 12-question sample stays free. Full runs use existing simulator access; coached interviews have separate access. Repeated runs may revisit question families with different values.
Know what to expect.
Can I try a full assessment for free?
Eligible accounts can use one free full attempt across supported CaseStar simulators, not one per provider. Sign in and confirm availability before starting. The attempt is reserved when you start; you can resume that same run. Further full runs require appropriate simulator access. Free samples, lessons and their worked solutions remain available without buying.
How much is included in a full TestGorilla practice run?
The default CaseStar run has 48 questions: 12 each in numerical reasoning, critical thinking, working with data and problem solving. Each section has an unscored example and its own countdown; the review explains every answer. You can select fewer sections. These are practice choices, not a guaranteed Bain configuration.
What can I practise for free?
Start with four numerical, four critical-thinking and four working-with-data questions, without signing up. Unscored examples and worked solutions are included. You can try fresh free sets; full practice uses separate simulator access.
Is this the exact Bain assessment?
No. This is independent practice using original questions. Bain assigns Sova or TestGorilla by invitation, and the exact sections vary. We reproduce documented provider mechanics where supported and label our own practice choices.
How does the timing work?
Each practice section has a hard deadline. Selected answers count only after submission. You cannot go back. Refreshing does not reset the clock. Bain asks candidates to complete TestGorilla in one sitting.
Do I need a camera or a calculator?
CaseStar does not request a camera, microphone or recordings for this practice. Bain allows pen, paper and a calculator for its digital assessment, but not a calculator in later interviews. Follow the instructions in your invitation.
Will this predict whether I pass?
No. Your results describe this practice set. They are not Bain scores, employer percentiles or a pass prediction. Behavioural familiarisation has no right answers or ideal-personality score.
Source checked 9 September 2026: Bain’s digital assessment guidance. Independent preparation; not affiliated with Bain, Sova or TestGorilla. Never use coaching or AI assistance during a live recruitment assessment.