Images Interview Questions

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I was asked 3 questions. The first one was on the concept of probability." You have been given 3 balls which are numbered as 1, 2 and 3 and they are placed inside a bag. You randomly select 3 balls, one ball at a time. Considering your selection, you win if at least one selection number matches with the number on the ball. So for example if you get ball with number 1 on your first draw you call this as win. So the question what are the chances of winning if you do this with replacement versus without replacement
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Seismic Imaging Analyst

Interviewed at Viridien

4
May 1, 2020

I was asked 3 questions. The first one was on the concept of probability." You have been given 3 balls which are numbered as 1, 2 and 3 and they are placed inside a bag. You randomly select 3 balls, one ball at a time. Considering your selection, you win if at least one selection number matches with the number on the ball. So for example if you get ball with number 1 on your first draw you call this as win. So the question what are the chances of winning if you do this with replacement versus without replacement

Q1: A and B are flipping a coin. A flips first, and then B. What is the probability of A winning first? Q2: What is the volume of a cube inscribed in a sphere with radius 1? Q3: There are 25 horses, each of which runs at a constant speed that is different from the other horses. Since the track only has 5 lanes, each race can have at most 5 horses. If you need to find the 3 fastest horses, what is the minimum number of races needed to identify them?
avatar

Seismic Imaging Analyst

Interviewed at Viridien

4
Feb 24, 2024

Q1: A and B are flipping a coin. A flips first, and then B. What is the probability of A winning first? Q2: What is the volume of a cube inscribed in a sphere with radius 1? Q3: There are 25 horses, each of which runs at a constant speed that is different from the other horses. Since the track only has 5 lanes, each race can have at most 5 horses. If you need to find the 3 fastest horses, what is the minimum number of races needed to identify them?

Interview 1, Q3: A company wants to make 2880 teddy bears in a day, and they work 24 hours a day. There are three stations that the teddy bears go through. Station A takes 2 minutes per employee, station B takes 6 minutes per employee, and station C takes 4 minutes per employee. How many employees are needed at each station? If the teddy bears cost $20 to make and the employees are paid $15/hour, what price do they need to sell the teddy bears at to break even?
avatar

Seismic Imaging Analyst

Interviewed at Viridien

4
May 15, 2024

Interview 1, Q3: A company wants to make 2880 teddy bears in a day, and they work 24 hours a day. There are three stations that the teddy bears go through. Station A takes 2 minutes per employee, station B takes 6 minutes per employee, and station C takes 4 minutes per employee. How many employees are needed at each station? If the teddy bears cost $20 to make and the employees are paid $15/hour, what price do they need to sell the teddy bears at to break even?

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