What is the angle between the hour- and minute-hand when a clock strikes 3:15?
Trade Support Interview Questions
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You have scales and 9 identically looking balls, 8 of them have the same weight and the 9th is heavier. How many times do you need to use the scales to find the heavier one. Now suppose you're allowed to use the scales 3 times. What is the maximum number of balls as above, among which you can find the heavier one. What is the answer if you're allowed to use the scales n times. The other question I was asked has already been mentioned here.
If I had unlimited sticks, a lighter, and each stick takes an hour to burn from end to end. How would I time 45 mins?
How many trailing zeros are there in 1000! (1000 factorial ie 1000 x 999 x 998 .... x 3 x 2 x 1)
1. Let x～Uniform(0,1) and y～Uniform(0,2) be independent random variables, what\'s expectation of |x−y|?. 1point 3acres 论
A king wants to hold a party, for which he has 8 kegs of wine, one of which he knows is poisoned. If someone consumes any of the poisoned wine, he will drop dead in exactly one months time. The king has 3 servants who have volunteered their lives to test the kegs of wine. What is the shortest amount of time in which the king can identify which keg of wine is poisoned and dispose of it so he can hold the party.
Warm-up question: You have a six-sided dice, and you will receive money that equals to sum of all the numbers you roll. After each roll, if the sum is a perfect square, the game ends and you lose all the money. If not, you can decide to keep rolling or stop the game. If your sum is 35 now, should you keep play?
How much would pay to play a game where you get paid for the number of pips that you roll on a fair dice, but can re-roll the first time.
You have two decks of cards, one normal 52-card deck and one 104-card deck with double every card. Is one deck better than the other if you wanted to get two black cards in a row?
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