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There are a total of 2012 balls in the three piles. If Gao takes the same number of balls from each pile, there are still 17 balls left in the second pile, and the number of balls left in the first pile is twice that of the third pile, then the third pile is the original pile______ A small ball
In the third pile, there are only y ones left in the third pile, and then: x + 2Y + (x + 17) + (x + 17) + (x + 17) + (x + y) will be: x + 2Y + (x + 2Y + (x + 17) + (x + 17) + (x + 17) + (x + 17) + (x + y) + (x + y) will be: x + 2Y + (x + 2Y + (x + 17) + (x + 17) + (x + y) + (x + y) + (x + y) will be (x + y) in the third pile, then: then: x + 2x + 2Y will be: x + 2x + 2Y, then: x + 2x + 2x + 2Y (x + X + X + 2Y) is: x + 2x + 2x + 2x + 2X + 2x + 2x + 2x + 2x + 2x + 2x + 2x + 2x + 2x + 2Y (x + 2x + 2x + 2x + 2nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; &A: there are 665 balls in the third pile. So the answer is: 665 balls
There are 160 pieces in three piles. The second pile is three times of the first pile, and the third pile is 20 more than two times of the second pile. How many more pieces in the third pile than the first pile?
If the first stack is set to x, it will be x 3x 6x + 20 respectively
Total: 10x + 20 = 160 x = 14
5X+20=90
A: 90 more
1-2+3-4+5-6+7-8+9-10+11-12+13-14+15-16+17...+2011-2012
The sum of every two items is - 1, there are 2012 items in total, so there are 1006 - 1, so the answer is - 1006
In rational numbers 1.7, - 17,0, negative 5 and 2 / 7, - 0.001, - 2 / 92012 and negative 1, how many are integers, negative numbers and fractions?
4 5 4
There are 12 red, yellow and blue glass balls in the box. At least a few of them can be taken out to ensure that the three colors of the glass balls are available
Think: to ensure that take out three different colors of the ball, then consider from the worst direction: if you take 12, are the same color how to do? So, you have to take 12 first, to ensure that take out one color; then, take 12, the second color was taken out. Now, only one color, then, no matter how many you take
There are two red, black and white glass balls in an opaque box. To ensure that there are three colors of glass balls, how many do he take out at least?
It's three colors, all the formulas
I don't know if there are any other conditions for the title. If that's the case, five of the three kinds of "guarantee" need to be taken. In fact, it's an enumerative solution. It's obviously impossible to take one or two. In addition to red, white and black, there may be red, white, black and white, black and white, etc. in the case of three. In the case of four kinds of "guarantee", there may be red, white, black, black and red, which is not enough
There are eight red, yellow and blue glass balls in one box. At least a few glass balls can be found in this box at a time,
Make sure there are two pairs of glass balls of the same color?
Make sure there are two pairs of 10
There are six red, yellow and blue balls in one pocket. At least () balls in three different colors should be found
6+6+1=13
A bag of red, orange, yellow three colors of the ball, each arbitrary touch 2, then at least a few people to ensure that there are two or more people choose the same ball
6 + 1 = 7 (people); answer: at least 7 people can guarantee that two or more people choose the same ball
There are two kinds of balls of the same size and different colors in the bag. If you touch at least a few balls, you can ensure that there are two balls of the same color
There are (how many) two balls of the same size and different colors in the bag. At least a few balls can be found out to ensure that there are two balls of the same color
RELATED INFORMATIONS
- 1. The black-and-white beads are white and black, forming an equilateral triangle. When the difference between the number of black-and-white beads in the equilateral triangle is 30, how many should be arranged on each side of the triangle?
- 2. A box of beads, the first time out of the total number of 15 and 4, the second time out of the remaining 14 and 3, the third time out of the remaining 13 and 2, the fourth time out of the remaining 12 and 1, then there is still one in the box. How many original beads in the box?
- 3. The first pile has the same number of black and white pieces as the second pile. The third pile accounts for 40% of the total black pieces, and the white ones account for a few parts of the total There should be a formula
- 4. There are 64 red and black glass balls of the same size. They are arranged in the order of three red balls and one black ball. What percentage of the total number are the two kinds of glass balls?
- 5. There are 140 red and black balls in total. Take out 1 / 4 of the red ball, and then take out 7 black balls. The remaining red balls and black balls are exactly the same
- 6. There are six red, blue and yellow glass balls of the same size in the box,
- 7. All the people are here, only Li Hong is late
- 8. Li Hong is wearing a red coat and a white hat. She is very energetic?
- 9. Zhang Ming and Li Hong have collected 171 stamps. It is known that one fourth of Zhang Ming's stamp is equal to one fifth of Li Hong's? By arithmetic
- 10. 61 children use colorful small bulbs to decorate classroom. The three rooms are connected by three yellow, two red and three green rules. What color are 149th small bulbs?
- 11. There are 158 cards in red and black. They are arranged in the order of five red cards and four black cards. What's the last color? Ask to explain + answer (urgent!
- 12. How many ways to put four different balls into three different boxes?
- 13. There are 24 table tennis balls in one box 1. If two-thirds of the students are sent, how many are left? 2. If you send one sixth of the whole box to the students first, and then one third of the whole box to the students, how many will be sent to the students?
- 14. There are six red balls and six blue balls of the same size in the box. 1. If you want to find two balls of the same color, how many balls at least? 2. There must be three balls of the same color in order to touch them. How many balls should we touch at least? 3. If you want to touch the ball, there must be two colors. How many balls should you touch at least?
- 15. If four different balls are put into four red, yellow, blue and green boxes, there is exactly one empty box
- 16. In a box, there are 20 balls of red, yellow, blue, green and white. At least touch a few balls to ensure that there are two balls of each color? Come on the sooner the better Within an hour
- 17. There are 10 red, yellow and blue balls in your pocket. Close your eyes and make sure you can touch many four balls of the same color at a time. How many can you touch What's the formula
- 18. There are ten small balls in red, yellow, blue and white. Put them in a cloth bag and find five at a time. How many of them have the same color? 9, 13. What's the rule
- 19. There are 10 red, yellow, blue and white balls each, mixed in a cassette, and at least one touch out______ In order to ensure that there are six balls in the same color
- 20. There are 10 red, yellow, blue and white balls, which are mixed and put in a cassette. At least how many balls must be found at a time to ensure that there are 6 balls in the same color