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Reprinted from 937255659 at 11:06 on December 13, 2010 Reading (loading. ..) Comments (0) Category: Personal Diary
1. has two non-uniform distribution of fragrance, fragrant burn time is one hour, you can use any method to determine a period of 15 minutes?
2. a manager has three daughters,
timberland boots uk, three daughters, add up to the age of 13, the age of three daughters by his age, it is equal to Manager, a subordinate manager is aware of the age,
cheap timberland boots, but still can not determine the three managers daughter's age, then the manager said only one daughter's hair is black, then the manager will know that under the age of three daughters. What are the age of three daughters how much? Why?
3. there are three people go to a hotel, housing three rooms, each room $ 10, so they paid a total of $ 30 for the boss, the next day, the boss felt three-room only $ 25 he had called the little brother back enough $ 5 for three guests, who knows greedy brother, only to return each $ 1 that he secretly took $ 2, so that would mean that each of the three guests to spend nine million, then spent a total of three $ 27,
mens timberland boots, plus the brother who pocketed the $ 2, a total of $ 29. However, three of them had to pay $ 30 then there are a total of $ 1 it?
4. there are two blind people, they each bought two pairs of black socks and two pairs of socks, eight pairs of socks out of the cloth, the size is identical, and each has a trademark on the socks out of paper attached. The two blind accidentally mixed with eight pairs of socks out. How can each of them to retrieve the black socks and two pairs of socks it?
5. there is a train speed of 15 km per hour out of Los Angeles went straight to New York, the other a train speed of 20 km per hour from New York bound for Los Angeles. If there is a bird, the speed of 30 km per hour and two trains start at the same time, from Los Angeles, hit another car and returned, followed by flying back and forth in the two trains until the two trains meet, I ask that many long-distance bird flight?
6. You have two jars, 50 red marbles and 50 blue marbles A jar randomly selected, randomly selected out of a marble into the jar, how to select the greatest opportunities for the red ball ? In your plan, get the red ball accurately the odds?
7. you have four installation pill jar,
timberland uk, each has a certain weight, pills, pills are not contaminated by pollution, the weight of +1. Weighing only once, how to determine what the drug was contaminated jar?
8. you have a bucket of jelly, including yellow, green, red, three, close your eyes, grab the two the same color jelly. Crawl can determine how many you must have two of the same color jelly?
9. on a group of numbers 1 to 100, all switches facing up (open) the lights do the following: whatever the opposite direction allocated in multiples of 1, the first switch; 2 times the opposite direction and allocation of time switches; 3 times the opposite direction and allocation of a switch ... ... Q: Finally, the status light is off the number off.
10. Imagine you in the mirror, I ask, why is the mirror image can be reversed or so, but not upside down?
11. a group of people having a party, each head is wearing a hat. Only black and white hat, black with at least one. Everyone can see other people hat color,
timberland outlet, but can not see their own. Host let us look at other people wearing the Shiyao hat, and then turn off the lights, If anyone thinks himself wearing a black hat, slap yourself across the face. First turn off the lights, no sound. Then turn on the lights again, we see it again,
timberland kids, turn off the lights were still silent. Until the third turn off the lights, have a slapping sound of crackling sounds. Q. How many people wearing black hats?
12. two circles, radius 1 and 2, respectively, small round circle in the circle around the circumference within the week, small round their turn to ask for a few weeks? If the outer circle, small round weeks it's own switch?
13. If every three empty beer bottles to exchange for a bottle of beer, a person bought 10 bottles of beer, how much he can drink the most beer?