1) Puzzle- You have two ropes, each rope burns completely in 1 hour. Both the ropes are non uniform. One has to calculate 45 minutes. 2) How many coldrinks are sold in Patna in one day
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I was asked an algebra work problem, something like "If you can do X work in 2 hours and another person can do Y work in 4 hours, when will you finish if you work together?"
You have 8 coins and one of them is a counterfeit(weighs less than the others). Given a scale, how would you weigh the coins to determine the counterfeit coin in the least amount of weighs possible?
You are trying to race 25 horses with 5 lanes. No stop watch or anything. Try to find the 3 best performing horses in fewest rounds possible.
Example of the SQL exercise: For accounts that are reported exactly n times in 2012 (n = 1, 2, …), what is the average amount spent by these accounts for different payment types in different months in 2012? What percent of the monetized accounts gets reported before they monetize? Example of the brain teaser questions: sum of 1-99 sum of a 10x10 matrix, 1st row and 1st column are 1,2,...10. where the first row is: 1,2,..,10, the first column is: 2,4,..,20. and the last row is: 10,20,...,100. sum of a 3 dimension with rows and columns from 1-10 just like the previous question. pets doubling everyday. at day 25, it reaches to the capacity. how many days it will fit in half of the capacity. clock, degree between 3 and 3:25 clock, degree when hour head and minute head overlap at 3-4 oclock.
What would you rather prefer? SQL or PHP?
If you were asked to move this (30+ stories) building across the hudson river, what would you do?
What is the expected number of coin tosses until the sequence THT is observed?
Calculate the factorial of a number?
Given an array with integers, all integers appear once except one appears twice. How do you find that integer in the fastest way? Complexity?
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