We know there are 7 days in a week, 100 mod 7 = 2, as 100/7= 14 remainder 2. If I light rope A from both ends and rope B from one end at the same time, as rope A burns out in 30 minutes, I then light the other end of rope B, that will burn out in another 15 minutes, 45 minutes – bingo! Usually, you can start with a subset of the original population and work your way upwards.

For example, the classic Tiger and Sheep problem: One hundred tigers and one sheep are on a magic island that only has grass. I use this one a lot when I interview candidates: * A stock is trading at 100. Simply put, if you have more “objects” than you have “holes,” at least one hole must have multiple objects in it. Registration confirmation will be emailed to you. states that if m items are put into n containers, with m > n then at least one container must contain more than one item.

Brainteasers are an important part of the trading interviews. Opportunities to test and improve your skills work smoothly. This somewhat obvious principle can be applied to a lot of brain teasers. Accuracy, of course, is key to answering brainteasers.

The first round of the interviews usually contains a mental arithmetic test. If you do not know the answer, press ‘Hint’ instead of looking at the answer. Therefore, we need to remove 4 individual marbles to be sure that we have at least two marbles of matching colour. If a tiger bites a sheep then it will become a sheep itself. Quant Trading Brainteaser Question: If two cars are traveling in a two lap race on a track of any length, one going 60 mph and the other going 30mph, how fast will the slower car have to go to finish at the same car to finish at the same time? However, the ropes do not burn at constant rates—there are spots where they burn a little faster and spots where they burn a little slower, but it always takes 1 hour to finish the job.With a lighter to ignite the ropes, how can you measure exactly 45 minutes? Please contact us via hello@tradinginterview.com and we will provide you with more information. Brain teasers come with different variations. Each brain teaser has a hint if you get stuck and answer to check your thought process. Here, you want to go first and place the first coin in the very centre of the table. Proceed to copy each placement of their coin on the opposing side of the table. After you have aced the Maths and Sequence quizzes, you will be invited for an interview or assessment centre. Try to solve them by yourself. Each brain teaser has a hint if you get stuck and answer to check your thought process. Also, try to interview your friends with these kind of brain teasers. I will say 150,000 for simplicity.”, “Now I am going to assume that the market dictates the number of piano tuners.”, “I will assume a piano is tuned on average once a year and each tuning take roughly 2 hours, including travel time.”, “If each piano tuner works 8 hours a day, 5 days a week for 50 weeks a year, that’s 2000 hours. They are looking that you can remain calm, communicate clearly and answer logically. A bag of marbles contains 4 which are red, 4 which are blue and 4 which are green.

The players alternate turns, with each turn adding a single coin to the table. What are the numbers on each piece?

“Firstly, I will estimate the number of people in London that own a piano. It is good to give a road map of how you will answer the question.

This somewhat obvious principle can be applied to a lot of brain teasers. Tigers do not mind being a sheep, but they have a risk of getting eaten by another tiger. Ask enough questions, listen well to the information that is provided and don’t stress out due to the interview setting. Please contact us via hello@tradinginterview.com and we will provide you with more information. Logically working through each scenario. Also, try to interview your friends with these kind of brain teasers. You can check the room only once. The brain teasers on this website will be labeled to indicate which variant you are practising. Now you will start to notice a pattern that if there are an odd number of tigers, the sheep does not survive. How many marbles must be chosen from the bag to guarantee that two are the same colour? Your approach and behaviour during solving might become more important than the actual answer itself. The provided brain teasers contain the  following variations: hello@tradinginterview.com Terms and conditions Privacy policy Blog. In this situation, the sheep survives. We start by summing the numbers from 1 to 12.

Trading Interview provides you with a wide variety of brain teasers that are on an interview level.

What day of the week it will be 100 days after Monday?

Easy. This website really helped me a lot. Without preparation, sequences might overwhelm you. Tomorrow it is either going to trade at 90 or 120 (no other possibility). Overall, I was positively surprised by the amount of information and preparation material, and it eventually helped me a lot in preparing for my interviews and finding the perfect junior position.

The interviewer can test the applicant’s intuition, stress-resistance, sharpness, short-term memory and the applicant’s ability to draw conclusion from information.

Let us simplify the subset of tigers: 1 tiger and 1 sheep – The tiger will eat the sheep as it will not have to worry about being eaten afterwards. Whilst I am thinking… Do you mean the city of London or Greater London?

A huge thank you to Nigel Caldwell, who has spent many hours answering each of these brain teasers for you! It is worth knowing the following formula: We start by summing the numbers from 1 to 12.

Your approach and behaviour during solving might become more important than the actual answer itself. This seems a little complicated. Previous Post Previous Trading Interview Brain Teasers Next Post Next Jane Street Trading Interview Questions Our e-book is the only resource you need to prepare, with dozens of quant trading interview questions with answers from top hedge funds, quant shops, and prop trading firms. Asset pricing is one of the main pillars of financial economics and this course will go through all the fundamental topics. Exercise is key.

Accessing this course requires a login, please enter your credentials below! After my master in Econometrics, I started orientating among High Frequency Trading (HFT). It follows that they must be the first player to not lay a coin flat on the table as they are always now the “first “to act. hello@tradinginterview.com Terms and conditions Privacy policy Blog. The modulo or mod is the remainder when dividing. Find your dream job and follow our courses to prepare yourself for the job interview. Here you can try out few example brain teasers.

Also, the interviewer will provide you with some hints – when you don’t work the solution out right away. The pigeon hole principle states that if m items are put into n containers, with m > n then at least one container must contain more than one item.

Great amount of content such that you can really dig in the various relevant subjects. Try to lead your friend with some hints to the final solution. Trading interviews contain probability questions.

It is worth knowing the following formula: to sum the numbers from 1 to n. For example summing 1 to 6, . Price a 1-day call option struck at 105. If 2 tigers attack a sheep, only the first tiger to bite converts into a sheep. The game board is a circular table. 2 tigers and 1 sheep – Each tiger knows that if they eat the sheep, they will turn into a sheep themselves and then the other tiger will eat them without the risk of another tiger eating them. Reduced, reduce, reduce. Traders are quick if it comes down to mental arithmetic. A huge thank you to.

Trading Interview provides you with a wide variety of brain teasers that are on an interview level. Are you interested to have a company profile and post jobs on our website? Here we have 3 pigeon holes – the colours, red, blue and green.

Will the sheep survive? Find out which switch controls which bulb. Two players are playing a game. Try to solve them by yourself. Each piano takes 2 hours, meaning each piano tuner tunes 1000 pianos a year.”, “Dividing that into the 150,000 pianos, gives 150 piano tuners in London.”.

These type of brain teasers often require you to work through the possible solutions step-by-step with little maths. This is when I found out about Trading Interview. This course will first take you through the theoretical description of the different kind of financial instruments, before it continues on the mathematics of option theory. With this sort of brain teaser, the interviewer rarely will care if your final answer is way off. Brain teasers are an important part of the trading interviews. All tigers are intelligent and want to survive. Seemingly simply, it will help you to answer a lot of brain teasers.

Other brain teasers will require you to use maths, such as summing numbers.

A clock fell off the wall and broke into three pieces that the sums of the numbers on each piece are equal.

If I set either rope A or B alight it will take 1 hour – not helpful, If I cut either rope A or B in half and set alight, however, they do not burn equally – not helpful, If I light rope A or B at both ends it will take 30 minutes – slightly more helpful.

Now you should realise that you must pair up the bigger numbers with smaller numbers.



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