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问：三个人去投宿，一晚30元，三个人每人掏出10凑够30交给老板，后来老板说今晚优惠只要25元，拿出5元命令服务生退还给他们，服务生偷偷藏起了2元，然后剩下的3元分给那三个人，每人分到1元，这样一开始每人掏出了10，现在又退回1元，也就是10-1=9，每人只花了9元，3个人每人9元，3*9=27元+服务生藏起的2元等于29元，还有1元去哪了？答：有三个人去住一家宾馆,三人间的房价是30元,他们每人凑了10元交给老板.老板说那天刚好打折,25元就够了,于是让服务员退5元给那三个人.结果服务员自己贪污了2元,把剩下3元退给那三个人每人1元. 好吧，问题现在就是:每人交了10元,每人又退了1元,也就是说他们每人付了9元,三个人总共付了9*3=27元,加上服务员贪污的2元,总共才29元,为什么会少1元钱?那1元钱哪去了呢? 不能用27+2来算 因为27元是他们三人最终付出的钱,2元服务员私吞的钱,25元是老板最终得到的钱 以服务员为交易的终点:三人最终付出27元-老板最终得到25元=小二私吞的2元 以老板为交易的终点:三人最终付出27元-服务员私吞的2元=老板得到的25元 以顾客为交易的终点:三人先付出30元-服务员后来退还的3元(即:老板给了服务员5元-服务员私吞的2元)=顾客最终付出的27元
匿名 2010-09-30 13:01 您已经评价过！好:
匿名 2010-09-30 13:01 您已经评价过！好:
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Q 90
theyall hav1.What is smaller than an insect’s mouth? ---- Anything iteats.
2. Whatseason is the most dangerous one? ---Fall
3. What’s toomuch for me，just rightfor two，but nothingat all for three? ----A secret
4. One groupof numbers stands for one color. One number stands for one letter. Can youcrack the code and write out the color? ----- yellow,green, brown, orange
1 2 3 3 45___________; 6 7 2 2 8______________;
0 7 4 58_____________; 4 7 9 8 6 2_____________;
5. How many feet are in a yard? ---- It depends on how many people are standing in it.
6. Whatperson tries to make others smile most of the time? ---- A photographer
7. From whatnumber can one take half and leave nothing? ---The number 8 (Take away theupper half and 0 is left).
8. The womanwent shopping. One spent 1,000 more than the other, and together they spent 4,000. How much did each of them spend? -----1500, 2500
9. How manymonths have 28 days? -----All of them (each month has its 28th day)
10. Whichhorses have six legs? -----All horses have forelegs (four legs) in front and two in back， so e six legs
11. Why does time fly? ---- How time flies.
12.Why is the letter E so important? ----- E--everything
13.Why are the letter G and letter S in "gloves" close to each other? ----- Gand s has love in between
14.What number completes thetable? -----12
5
11
6
9
16
7
8
?
4
15. What timeis it when a pie is divided among four friends? ---- 12:45 (A quarterto one)
16. What nailshould you never hit with a hammer? ----Finger nail
theyall hav1.What is smaller than an insect’s mouth? ---- Anything iteats.
2. Whatseason is the most dangerous one? ---Fall
3. What’s toomuch for me，just rightfor two，but nothingat all for three? ----A secret
4. One groupof numbers stands for one color. One number stands for one letter. Can youcrack the code and write out the color? ----- yellow,green, brown, orange
1 2 3 3 45___________; 6 7 2 2 8______________;
0 7 4 58_____________; 4 7 9 8 6 2_____________;
5. How many feet are in a yard? ---- It depends on how many people are standing in it.
6. Whatperson tries to make others smile most of the time? ---- A photographer
7. From whatnumber can one take half and leave nothing? ---The number 8 (Take away theupper half and 0 is left).
8. The womanwent shopping. One spent 1,000 more than the other, and together they spent 4,000. How much did each of them spend? -----1500, 2500
9. How manymonths have 28 days? -----All of them (each month has its 28th day)
10. Whichhorses have six legs? -----All horses have forelegs (four legs) in front and two in back， so e six legs
11. Why does time fly? ---- How time flies.
12.Why is the letter E so important? ----- E--everything
13.Why are the letter G and letter S in "gloves" close to each other? ----- Gand s has love in between
14.What number completes thetable? -----12
5
11
6
9
16
7
8
?
4
15. What timeis it when a pie is divided among four friends? ---- 12:45 (A quarterto one)
16. What nailshould you never hit with a hammer? ----Finger nail
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