Math Interview Questions

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Manager at Amazon.com

Mar 29, 2010

“If you had 5,623 participants in a tournament, how many games would need to be played to determine the winner”

Trader at Jane Street

May 2, 2012

“What is the sum of the digits of all the numbers from 1 to 1000000? This is different from the sum of the numbers. For instance the sum of the numbers from 1 to 10 is 55 whereas the sum of the digits...”

“Implement a power function to raise a double to an int power, including negative powers.”

“• Is 1027 a prime number? • How would you write an algorithm that identifies prime numbers? • 2 blue and 2 red balls, in a box, no replacing. Guess the color of the ball, you receive a dollar if...”

“13 cubed”

“One thousand 1x1x1 cubes in a 10x10x10 cube. Outside spray painted. How many have no paint.\?”

1 of 1 found helpful

“If you have a three gallon jug and a five gallon jug No marks on either one The goal is to fill the five gallon jug with four gallons of water How is this accomplished?”

“You sell 200 cups of coffee per year at $10 for a cup. It costs you eight dollars to produce a cup of coffee. Would you rather double your price but loose half of the amount you sell or keep the...”

“How would you implement integer division if your language did not offer it.”

1 of 1 found helpful

“We have a pond containing a single bacterium. The number of bacteria double every 5 minutes, and the pond is full of them in 24 hours. If we started with the same pond but two bacteria, how long will...”

110 of 65 Interview Questions