Five Rings phone screen practice
First call: about 10 to 19 quick mental math and probability questions at 15 to 30 seconds each, then several probability-heavy interviews.
Free, timed practice that matches the reported format, with a worked solution for every question and a projected score for the real test. No signup: your history stays in your browser.
Reported format
Phone screen
What candidates report
- This is a live call, so practice answering out loud.
- Later rounds: expectation, waiting times, order statistics and geometric probability. Use linearity and symmetry to skip casework.
How to prepare
- How to solve Beat the Odds questions
- How to solve Speed arithmetic questions
- How to solve Expected value questions
- How the projected score works
Other firms
Optiver · Flow Traders · Akuna Capital · Da Vinci · SIG · IMC · Citadel Securities · DRW · Jane Street
Formats come from candidate reports and prep sites, not from Five Rings, and they change by year, office and role. Check your own invitation. Sources: Tradermath, QuantVault.