Associate Interview Questions in Chicago, IL | Glassdoor

# Associate Interview Questions in Chicago, IL

3,162

Associate interview questions shared by candidates

## Top Interview Questions

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Mar 23, 2011

### Associate Consultant at Mattersight was asked...

Apr 7, 2010
 You have an unlimited number of marbles colored 3 ways (green, red, blue) how many marbles do you need to select in order to be certain you have one of each color3 Answersfour, logic your way through it.Yeah, I'm pretty sure to be sure, you need an infinite number of pullsWorded like that, you would need an infinite amount of pulls to be "certain."

### Senior Associate at McKinsey & Company was asked...

Jul 26, 2009
 Estimate size of vehicles fleet in a large city3 AnswersTried to approach problem using bottom-up reasoningThis is a simple market-sizing question. Therefore you need to make assumptions on the numbers, for example... Assume large city = 5 million people Assume 60% own a car, the rest use public transport = 3 million people Assume 50% of these people work in an office = 1.5 million people Assume 10% of these people are middle to top mgt = 150K people Therefore size of the vehicles fleet in a large city = 3% of population of the city This is an example of how it can be done. They are not looking for the exact number! They won't to know how you think...how you break a problem down."Define" large city to mean 10 million people+, but assume 10 million to keep the math feasible Assume that those living under the poverty line cannot afford cars - this takes 30% or 3 million people out of the running Out of the remaining 7 million people, assume that 30% are under 18 and another 20% are over 65 and thus are unlikely to drive a car themselves This leaves a potential car-owning population of 3.5 Million people Assume that there are 2 types of cities - ones with great public transport (e.g., NYC, San Francisco) and others with poor public transport (e.g., Dallas) In the former, only about 20% of the potential car-owning population is likely to hassle with owning a car, but in the latter 70% of the potential owners may opt for a car. Thus the range of cars that I'd expect to see in a city of 10 million is somewhere between 700K and 2.45M. Oh and by the way, I am assuming that this is a city with enough infrastructure (e.g., roads, parking, gas stations) to support cars for this many people.

Oct 21, 2012
 A king has 1000 bottles of water, exactly one of which is poisoned. Servants die the day after consuming the poison. The king holds a party and has his servants drink the bottles. The next morning, the king finds out which servants are dead. What is the minimum number of servants that the king needs at the party to determine which bottle is poisoned?4 AnswersThe king needs 10 servants. Label the bottles in binary: 0000000000, 0000000001, 0000000010, 0000000011, ... The 1st servant drinks all bottles where the 1st digit is 1, not 0. The 2nd servant drinks all bottles where the 2nd digit is 1, not 0. The 3rd servants drinks all bottles where the 3rd digit is 1, not 0. The rest of the servants drink similarly. After finding out which servants are dead, the king can match the unique binary number to determine which bottle is poisoned.You need 6 servants.Since the king has to wait to the next morning to know, it will require 999 servants.Show More Responseswe dont know the capacity of a bottle, and a person can drink at an avg of 6 litre of water per day

### Associate Consultant at Mattersight was asked...

Apr 7, 2010
 How much would you charge to wash the windows in downtown?2 Answers\$25 per windowSay maybe the average building downtown has 100 windows. Suppose further that there are 200 buildings downtown. Then you have about 20,000 windows to wash. Perhaps it takes 2 minutes to wash each window. Then you will need 20,000/2 = 10,000 minutes to wash all the windows downtown. This translates to roughly 170 hours, which working a 40 hour week will take you just over 4 weeks (4.25 weeks). There's 52 weeks in a year, so you have worked 4/52 = 1/13 of the year. Now we need to make our numbers good to work with. Say you want 39,000 per year salary. Then you would charge 39,000/13 = 3,000 to wash all the windows in downtown. I'm pretty sure this is how they would like you to answer these questions.

Feb 23, 2011
 Efficient way to compute p^q, where q is an integer2 AnswersIteratively use p = n(p,q/2)^2The correct answer to efficiently calculate actually gives you a O(logn) runtime. Here is the code in python: def powlogn(p, q): if q < 0: return powlogn(1/p, -q) elif q == 0: return 1 elif q == 1: return p elif q%2: return p * powlogn(p*p, (q-1)/2) else: return powlogn(p*p, q/2)

Mar 4, 2011

### Associate at Novantas was asked...

Nov 10, 2010
 The rope question. Two ropes burn in an hour, at random, variable rates. Try to measure out 45 minutes with only those two ropes and a match.2 Answersgoogle it for the answer1. Burn 1 rope from 2 sides, and the second from 1 side 2. 1 rope burned from 2 sides will burn in 1/2 of hour. 3. When this rope burned, burn the half of 2nd burn (now only a half) from the second side 4. When this is also burned, 45 minutes will come

### Associate at Deloitte was asked...

Feb 22, 2012
 What are the different ways to value a business?2 AnswersIncome, guideline comps, guideline transactions. Sometimes LBOThere are only three main approaches to valuation: asset/cost, income, and market. Each approach is broken down into methods. Income approach contains the DCF method and capitalized income method. Two examples of the market approach are the multiple method and the transaction method. Asset approach could include replacement cost and adjusted net asset value method.

### Investment Associate at Northern Trust was asked...

Feb 25, 2015
 What is your knowledge of hedge funds?1 AnswerWhat do you have to offer apart from other candidates?
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