Quantitative Associate Interview Questions

10,161 quantitative associate interview questions shared by candidates

There are 100 doors in a row, all doors are initially closed. A person walks through all doors multiple times and toggle (if open then close, if close then open) them in following way: In first walk, the person toggles every door In second walk, the person toggles every second door, i.e., 2nd, 4th, 6th, 8th, … In third walk, the person toggles every third door, i.e. 3rd, 6th, 9th, … ……… ………. In 100th walk, the person toggles 100th door. Which doors are open in the end?
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Quantitative Analyst

Interviewed at EverQuote

3.3
Oct 24, 2018

There are 100 doors in a row, all doors are initially closed. A person walks through all doors multiple times and toggle (if open then close, if close then open) them in following way: In first walk, the person toggles every door In second walk, the person toggles every second door, i.e., 2nd, 4th, 6th, 8th, … In third walk, the person toggles every third door, i.e. 3rd, 6th, 9th, … ……… ………. In 100th walk, the person toggles 100th door. Which doors are open in the end?

1. Critical thinking brain teaser. 2. Coin probability question 3. Playing card expected value question 4. Coin expected value question 5. Talking through how I would program a function to rebalance a portfolio given 1) an array of tickers, and the price and number of shares owned for each and 2) an array of tickers and their desired portfolio percentages after said rebalancing.
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Quantitative Analyst/Developer

Interviewed at Intech

3.8
Jun 25, 2021

1. Critical thinking brain teaser. 2. Coin probability question 3. Playing card expected value question 4. Coin expected value question 5. Talking through how I would program a function to rebalance a portfolio given 1) an array of tickers, and the price and number of shares owned for each and 2) an array of tickers and their desired portfolio percentages after said rebalancing.

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