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Q: Brian has blue balls and red balls. Every day he loses 2 blue balls and gains 3 red balls. After 5 days the number of blue balls equals the red balls. After 9 days the red balls are twice as much as the blue balls. How many red balls did Brian have at the beginning?
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Account Manager

Interviewed at BairesDev

4.3
Oct 30, 2019

Q: Brian has blue balls and red balls. Every day he loses 2 blue balls and gains 3 red balls. After 5 days the number of blue balls equals the red balls. After 9 days the red balls are twice as much as the blue balls. How many red balls did Brian have at the beginning?

how did you analyze data? Who uses your data analysis results? how large is the data set you work with? sql question one: the first table is customer purchase table, with five columns, customer id, purchase date, product id, unit price, unit purchased, write queries to retrieve data with unique customer id that made over $100 purchase in the past seven days. sql question two: a second table is the customer details table, with two columns, customer id, registration date, write queries to retrieve data with unique customer id that made over $100 purchase who registered in the past ten days. probability question: what is the probability of generating ten consecutive numbers in ascending order out of 100 numbers? this is a random number generation question.
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Data Analyst

Interviewed at Amazon

3.5
Nov 8, 2016

how did you analyze data? Who uses your data analysis results? how large is the data set you work with? sql question one: the first table is customer purchase table, with five columns, customer id, purchase date, product id, unit price, unit purchased, write queries to retrieve data with unique customer id that made over $100 purchase in the past seven days. sql question two: a second table is the customer details table, with two columns, customer id, registration date, write queries to retrieve data with unique customer id that made over $100 purchase who registered in the past ten days. probability question: what is the probability of generating ten consecutive numbers in ascending order out of 100 numbers? this is a random number generation question.

First interviewer asked about potential scenarios to test APIs. Many follow-up questions based on my answers. Next interviewer, asked me to draw object-oriented design for a given animal hierarchy. Then, write code to find if the given coordinates are part of the four corners of a rectangle. Next, flip two dimensional array. Bar raiser asked many questions about i18n, testing web services etc. Behavioral questions such as examples of situations where you had conflicts with the idea of the majority of the team, approach when you find bugs after release etc were raised in each interview.
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Quality Assurance Engineer II

Interviewed at Amazon

3.5
Jan 19, 2015

First interviewer asked about potential scenarios to test APIs. Many follow-up questions based on my answers. Next interviewer, asked me to draw object-oriented design for a given animal hierarchy. Then, write code to find if the given coordinates are part of the four corners of a rectangle. Next, flip two dimensional array. Bar raiser asked many questions about i18n, testing web services etc. Behavioral questions such as examples of situations where you had conflicts with the idea of the majority of the team, approach when you find bugs after release etc were raised in each interview.

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