The hardest data cases
Hard business cases at the top of the bank — tier 4 and tier 5. Each gives you two or three linked exhibits and asks four questions that need a real adjustment — returns, churn, defects, claims, CAC — and a derived metric. The biggest raw number is never the answer.
Every key is independently re-derived from the case’s economic model. Answer all four, then get the worked solution and the named trap behind each wrong option.
3 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
1 exhibit · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
1 exhibit · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
3 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
1 exhibit · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
2 exhibits · 4 questions · tier 5
1 exhibit · 4 questions · tier 5
2 exhibits · 4 questions · tier 4-5
2 exhibits · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
1 exhibit · 4 questions · tier 4-5
Common questions
What makes these the hardest questions?
Each case gives you 2-3 exhibits — sales plus assumptions plus costs, say — and the answer needs you to join them, apply a real adjustment (returns, churn, defects, claims, CAC), derive a per-entity metric, then compare. The largest raw row is deliberately a trap.
Why are these premium?
They are the hardest tier (4–5) of the bank — hand-authored, every key independently re-derived from its economic model. They're built for candidates targeting top scores on data-heavy tests (SHL, Saville, cut-e, consulting).
Do I get worked solutions?
Yes — after the 4 questions you get a review with the full worked key and the named trap behind each wrong option. No feedback mid-case, like a real assessment section.