Round 2: If you have balls weighting from 1, 2, ... 40g, and you have a fair balance, how many of their weights you have to know in advance such that you can measure all the rest?
Quantitative Trader Interview Questions
1,130 quantitative trader interview questions shared by candidates
Q1: What is the smallest number whose digits multiply into 216. What about 10,000? Q2: Calculate the probability of getting 3 heads after 4 coin flips. What is the probability of getting an odd number of heads for 4 flips? What about for 9? What about for N flips? Q3: What is the next date whose digits are all unique? Q4: Getting heads-tails-heads and heads-heads-tails are equiprobable after 3 coin flips. But if I keep flipping a coin, I'm more likely to get one of these combinations than the other. Why is that?
It is noon. The hour hand and minute hand overlap. When is the next time these two hands overlap again?
A can finish a job in 100 min, B can finish the same job in 120 min. A and B work together on this job, but after 40 min C comes to help them and they finish the job in additional 10 min. How long would it take to C to finish the job by himself?
if you have 5 digits what is the largest number you can create whilst keeping the product 120, can you make it arbitrary large if we remove the restriction on number of digits?
The probability of raining on Saturday is 30%, probability of raining on Sunday is 40% (a) What is the probability of raining on weekend? (b) What is the assumption made? (c) If not independent, what is the maximum and minimum probability of rain? (Ans: 40%,70%)
We randomly select 3 numbers from the set of the first 9 prime numbers, without replacement. What is the probability the sum of those numbers is even? And why?
Approximate the number of book titles ever published
(NDA so nothing specific): Easy probability/brainteaser problems, Markov chains are important
What is the probability of an even number of heads when flipping n coins?
Viewing 31 - 40 interview questions