Company Prep

Mental Math Test

Prepare for Optiver's
8 in 80 Test

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Master Optiver's famous 8 in 80 mental math test. Practice rapid calculations in a realistic simulation of the assessment.
Sequences Test

Prepare for Optiver's
Sequences Test

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Excel in Optiver's sequences test. Practice pattern recognition and learn the common tricks to ace the assessment.
Probability Test

Prepare for Optiver's
Beat the Odds Test

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Beat Optiver's probability 'Beat the Odds' test. Master probability theory and learn the key strategies to solve Optiver's probability puzzles.
Technical Interview

Goldman Sachs
Interview in 1 Week

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Prepare for your Goldman Sachs technical interview for quant and trading roles. In 7 days, cover their most asked technical interview questions.
Technical Interview

Jane Street Interview
in 1 Week

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Conquer Jane Street's challenging technical interview. In 7 days, learn the tricks to answer their most common puzzles for quant trading and researcher roles.
Technical Interview

Optiver Interview
in 1 Week

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Excel in Optiver's technical interview. See their most commonly asked probability brainteasers in 1 week.