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Reprinted from 246066506 at 16:13 on January 16, 2011 Reading (loading. ..) Comments (0) Category: Personal Diary
1. There are 3 people to stay, one night 30. three each shelled out 30 yuan to 10 yuan lobbied his boss.
boss said later today offers enough as long as 25 yuan, 5 yuan out of the waiter returned to their command,
secretly hid the waiter 2 yuan, and then the remaining 3 dollars given to the three men, each assigned to 1 yuan.
this way,
mulberry handbags, the beginning of 10 yuan per person per dig, now back one yuan, which is 10-1 = 9,
spent only 9 dollars per person, 3 9 per person per person,
3 X 9 = 27 yuan + Waiter unseen from 2 million = 29 million, there is a dollar gone? ? ?
this issue in New Zealand when the interview has caused great repercussions. who knows the answer then?
Answer: 9 dollars spent per person, including the waiter has to hide the 2 million (ie 25 per + price waiter possession of 2 yuan = 27 yuan = 3 * 9 million),
paul smith handbags, therefore, In calculating the composition of this 30 per waiter possession can not count that 2 dollars, but should be returned to each person with 1 dollar. Namely: 3 * 9 +3 * 1 = 30 yuan exactly! .. Also another angle to it three out of a total of 30 million, spent 25 yuan, the waiter hid 2 million, so it took nine yuan per person, plus 1 per share of, just 30 yuan. So the dollar is found.
Summary: This question is mainly to confuse the people it was 2 dollars to 27 dollars from them separated out, the original title of the algorithm is wrong that the waiter left two yuan without permission is not included among the 27 yuan, so it there will be a few errors in the results of 1 yuan; and in fact left without permission to be included in the 2 yuan 27 yuan which, coupled with the return of three dollars, the result is just 30.
(2).
ask someone to buy onions onions onions how much a pound of them said to sell 1 kg of the 1 dollar 100 kg to 100 yuan
finished people asked to buy onions with light blue light green onions do not sell separately from the person selling that sell light green light blue 7 3 Mao Mao
people bought bought onions ; said to weigh 50 pounds light blue light green
50 pounds the last count 50 * 7 light blue light green is equal to 35 yuan 15 yuan 50 * 3 is equal to 35 +15 50
people buying to the selling onions onions were 50 left to sell onions and wonder why people have to sell 100 of the onion obviously
And that's why people buy onions 50 to bought it? You say this is why?
answer: 1 dollar a pound is either light blue or light green are a dollar a pound, when he separated the light blue and light green to buy,
louis vuitton handbags, the light blue light green 3 7 Mao Mao, in fact, there is no weight change, but the price has changed, light blue hair reduction in revenue of 3 per catty, lush hair reduction in revenue of 7 per catty, so eventually bought for 50 yuan.
(3). there is 7 meters deep wells have a snail
climb from the bottom during the day and night to fall to climb 3 m 2 m from the well
asked snail crawl out of a few days ?
Answer: 5 days.
This question is for seven days in a lot of people think about it .. in fact, say with a very simple way ..
click on the picture you take out a piece of paper .. This question is particularly simple ...
(4).
a dime a three peach peach peach
Hu for a dollar you can eat to get a few peach?
answer: 1 dollar to buy 10, left 10 nuclear after eating. And back to 3 peaches, 4-core left after eating.
pulls a peach, after eating left two nuclei. North Korea to sell on credit a peach, after eating left three nuclei. To sell nuclear gave peach, the top of that on credit.
So you eat a total of 10 +3 +1 +1 = 15 peaches.
This is the way we all know there is a way .. ..
Do not buy a separate buy ten .. ..
for the first time the second of two .. three .. two .. third .. this is very simple .... is 15.
(5) twelve tennis shape, same size, only one of a different weight and the other eleven, and now does not require a known weight of the scales three times the weight of the exception that the ball will find out, and know the ball is heavier than the other eleven or less.
Answer: AB C 3 is divided into groups of four,
for the first time, said there are 3 kinds of results ..
A> B or A = B or A <B
A big if A direct say in the B 4 while two balls, so to know which side weight, said weight which side which side to know which is the heaviest ball!
If A equals B C directly, said the four balls, as above
B if A is less than B directly, said the four balls, the method above.
(6) a businessman riding a donkey to cross the 1,000 km-long desert to sell 3000 carrots. Known one can pack 1,000 donkeys carrots, but each have to walk 1 km to eat a carrot. Q: How many merchants can sell up to the carrot?
Answer: 534.
first radish forward camel 1000 1000-2 * x1 x1 km down after taking the rest of the x1 root root return;
and camel 1000 radish forward, to take x1 x1 km radish roots, so that donkey just Camel 1000 radish;
to move to the starting point x2 miles away from, down 1000-2 * (x2-x1) radish roots back,
x1 kilometers just to eat the carrot, radish roots x1 and then take back the starting point;
last camel to go one thousand radish, the line between x1, x2 at the turn took away all the carrots, then the line to the end.
x1, x2, respectively, at the remaining carrot and less than or equal x1 (x2-x1), in the inequality constraints, the maximum value obtained can be two remaining carrot, radish, because in fact the remaining two months the final number is the number to reach the end of the radish.
final demand in the x1 = 200, x2 = 1600 / 3. The total distance traveled
ass is 2 * x1 +2 * x2 +1000 = 2466 +2 / 3, according to the meaning of problems is only a kilometer finish eating a carrot, radish is eaten to the total number of miles rounded down, for 2466, so the rest can be sold in the turnip eventually is 3000-2466 = 534 root.
(7) as saying that one day a pirate ship was the world drop down to hit a cow, 5 bad guy had to flee to an island, that island alone, and fortunately there are trees coconut tree, there are a monkey! we all picked the coconut together, but it is late, so went to bed first.
night a guy got up quietly, quietly divided into 5 copies of the coconut and found more than a coconut, easily give the lucky monkey, and then quietly hidden one, and then mixed with the rest of the coconut back in place, it still drops back to sleep quietly.
After a while, another guy got up quietly, quietly coconut into the remaining 5 were found that more than a coconut, he pulled to a lucky monkey gave, and then quietly drop a hidden , mix the remaining coconut back in place, but finally drop back to sleep quietly.
and after a while ......
and after a while ...
short five guys are getting up, have done the same thing. Morning we all wake up, their dismal sub-coconut, this is not an ordinary monkey really lucky, because this time the coconut is actually divided into more than 5 minutes after a coconut, had to gave it. The question is, this pile of coconut minimum number?
answer: this pile of coconuts at least 15621
the first person to give the monkey one, hid 3124, left 12,496;
second person to give the monkey one, hid 2499, left 9996;
third man to the monkey one, hid 1999, left 7996;
fourth person to the monkeys 1, hid 1599, left 6396;
fifth person to give the monkey one, hid 1279, left 5116;
Finally everyone divided into 5 portions, each of 1023, more than one, to the monkeys.
(8) Block a treasure island, you see the medium and small three islanders, islanders know you know that the great treasure in the mountains or the foot of the mountain, but sometimes telling the truth, said he sometimes lies, Only the Islanders know that the great Islanders are telling the truth or telling lies, but the Islanders their first person to tell the truth when it is telling the truth, telling lies before the people lie when he said, the two Civil held islands the way left or right hand, said it, but you do not know which hand, said that the hand that not, people know only island in the Islanders said was true or not, whether the language he used, he also know that right-hand man to say. But he always tell the truth or always telling lies, you do not know that he is which of these two types, you can use the least question the treasure in the mountains or the foot of the mountain? (Hint: If you ask people treasure island where he would ask how do you know where the treasure? Vain to ask)
Answer: For convenience, we denoted by medium and small islanders ABC (in fact, never used C)
first question A: Treasure in the mountains it?
second question B: A correct answer to it?
third question asked B: 1 +1 = 2 right?
OK, now we do not know A first question to answer is
see second question,
chanel flap bag, whether A answer means Chinese words would be).
the same, regardless of A answer means
Therefore, no matter the circumstances cited by the hand B is able to determine A is true or false, because the truth of the two of them must be the same. So easily find a topic to ask you can, such as 1 +1 = 2 is it? There are two ways
:
first casually ask a man: You are not telling the truth
raised on behalf of that person will be the hand
because if what he said was true , he would have raised his hand
representative is a lie, he said he would raise the hands of representatives resulting
so it can be, the hand and then asked the representative of the island is
China: Large Islanders said that the treasure is in the mountains it?
answer must be in the Islanders
correct answer is, the islanders say where the treasure in which
because if the Islanders said that if the big Islanders
say is true , then the islanders tell the truth, then the treasure to be in the mountains
Islanders say is that if the big lie, then the islanders say is lies, then the fact is that Big Islanders, treasure In the foot of the mountain, but because it is false, so the treasure is still in the mountains.
(9) said that a room has multiple tables, multiple people?
if the 3 people at the table more than 2 individuals.
If 5 people at the table more than 4 individuals.
if 7 people at the table more than 6 people.
If individual table 9, more than 8 people.
If 11 people at the table just right.
ask how many people in this room
Answer: 2519 individuals. As long as 315 × (11X +8) -1 can
9 is 3 because 3 times 3 is not so subject can be drawn under the laws of
is 5, 7, 9, a small multiple of a
So the 5 × 7 × 9 = 315
then calculate a multiple of 315 divided by 11 cycles
draw period: 731062951840 of 11, as is in addition to to 11 Well, there is no one simple method for testing the
315-1 to be divisible by 11 .. so get more than 1 cycle.
(10) Some people want to buy several sets of dishes, cutlery shop to look after, found himself with the money to buy a 21 fork and spoon 21, or 28 knife. If he bought a fork,
louis vuitton denim, spoon, knife the number of non-uniform, it can not with complete sets, so he must buy the same amount of fork, spoon, knife,
burberry bags, and who exactly will the money run out. If you are this person, how would you do?
Answer: You can buy 12 dishes.
a spoon and fork the money is 1 / 21 the money is a knife 1 / 28 ..
a total price is 1 / 21 +1 / 28 = 1 / 12 ..
So .. you can buy 12 sets of all the money run out.
(11) police investigation found that a thief is to catch thieves
police investigation, the thief ran
ran the ran the river appeared in front of this river is 12 meters
, thieves and police in the investigation River this side there are stars
tree 12 meters high tree, the tree leaves have a light scarf around the
thief 6 meters long and asked the thief
How to cross the river to run?
answer: the collar at the top of the tree line, the thief hanging on the collar swing,
collar and trunk, when a 45 degree angle to let go, thrown across the river will be the thief.
also made reference to what some people say the answer
can be drawn under the topic was the winter the water freezes ..
.. so .. ran past ...
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