BCG Numerical Reasoning Test: Format & Practice
BCG is reported to use BCG Online Case (the Casey chatbot) for numerical screening.
BCG's first screen is its own chatbot-led online case rather than a publisher test: Casey walks you through a business case and asks quantitative and qualitative questions, finishing with a short video answer. The quantitative questions are case-style arithmetic — sizing, percentages, share and growth from exhibits — under one overall clock.
What you’ll face
The preparation that transfers
Nobody can honestly clone BCG’s own assessment — be wary of anyone claiming to. What transfers is the core it measures: fast, accurate data interpretation under time pressure. Diagnose your gaps, train them, then prove it in a timed mock.
Employers change test providers by role, country and hiring round — use this page to prepare, then confirm the exact test in your invite. The format here reflects publicly reported candidate experiences as of June 2026; the link in your invitation names the platform.
Common questions
Which test does BCG use for numerical reasoning?
BCG is reported to use BCG Online Case (the Casey chatbot). Most offices' first round; formats can vary by region.
Is there maths in the BCG assessment?
Yes — BCG Online Case (the Casey chatbot) includes genuinely numerical work: reading data exhibits, percentages, ratios and quick case arithmetic. The wrapper is bespoke, but the numeracy underneath is standard and trainable.
How should I prepare for BCG Online Case (the Casey chatbot)?
Train fast, accurate data interpretation under time pressure — that's the transferable core. The bespoke interface is learnable from the employer's own practice material; the numeracy is what needs real training.
Is this information current?
Last checked June 2026, based on publicly reported candidate experiences. Employers change assessment providers — your invitation email is always the ground truth, and the format hints on this page help you recognise what you've been sent.
We are not affiliated with, or endorsed by, BCG or any test publisher. Employer and publisher names are trademarks of their respective owners. Our practice content is original; format information is based on publicly reported candidate experiences and may change.