The next day, the raw materials brought into the first day of the 3 times of raw materials brought into the third day than the first day or two more than the total number of transported 20 tons. How many tons brought into the third day?
2, the first year a school has 68 young pioneers, less than 15 second grade, third grade is the second year the number of young pioneers to 2 times. the third grade there are many people young pioneers?
3, 1 ton of coal shipped to the school canteen, burn plans 40 days, due to improved stoves, saving 5 kg per day, these can burn coal, how many days?
4, when the Tigers do division as the division by 40 4, 20 have business, but more than 3, the right business is a few?
5, two numbers is 979, one of the addend bit is 0, if the 0 removed, then the same with the other addend. These two numbers is the number?
6, when the organization's climbing in the Spring game, small light 15 minutes to go 630 m mountain, with such a speed, and the remaining 210 m mountain, a small light to go long?
7, this father and son's age and is 51 years old, my father's age than his son more than 3 times 3 years old, father and son is the facility?
8, there is a rope 20 meters long, each separated by 2 meters hang a lantern, hanging at both ends, how many lanterns you can hang up?
9, 2 km on a full installation of street lights along the street (both ends have to be fitted), every 50 Damian a total of how many street lights to be installed?
10,48 students to play games on the playground. We formed a square, each side an equal number. There are people of four vertices, each side a few students?
11, the square clock struck 5 under 5 and 8 seconds Qiao Wan. 12 knocking 12, the need for how long?
12, Wang Xiao Ming and running track in the ring, they both reverse the line from the same place, running 4 meters per second, Xiao-Ming, Wang ran 6 meters per second, 80 seconds after the first two second meeting. (1) Wang Xiao Ming and more to run than how many meters? (2) What is the circular track meter lap?
13, line 100 kilometers per hour, car, bus line 80 kilometers per hour. (1) If the two vehicles the same time and a place along the same direction, 5 hours after the two vehicles the number of kilometers apart? (2) If contrary to the line, the two vehicles after 3 hours the number of kilometers apart?
14, a rectangle 12 meters long and 8 meters wide, if the increase in length and width of 2 meters, area increased the number of square meters? (First drawing and then answer)
15, line 18 meters per second, the car, the car's length is 18 meters, 324 meters long tunnel, use the car all through the long tunnel?
16, 6 pear basket, each basket the same number of pears. If removed from each box of 30, then the number 6 box pear sum of the remaining 2 baskets of pears and more than the original 24 , the original number of each basket?
17, Lili, calligraphy, plans to write 15 a day, the actual day to write five, the results 2 days to complete the task. Lili total number of write calligraphy?
18, a number of sheets with a table, some chairs a number of the B, if B with all the chairs in exchange for an equal number of tables, you need to supply a 320 yuan, and if B does not make money, will have little change Back to the table 5. Given that 3 to 5 tables chairs price less 48 yuan, then how many chairs B?
19, a total of 15 chickens of two cages, if a cage and then into four, B cage out two, then B is also less than a one, two cages each of the original How many chickens?
20,7 tables and five chairs total price of 405 yuan, 5 tables and 7 chairs Total price 375 yuan. Asked each table and how much of each element of the price of the chair?
21, Tigers in the calculation of the division when the divisor is written 65 to 56, the result of the business is 13, has more than 52, the correct number of business should be?
22, Xiao Ming in the calculation of the division, the divisor 540 at the end of the leak was 0, the result of the business is 60, what is the right business?
23, square and round made with the same number of dividend, square, with 12 removed. Round with the 15 removed. Square quotient is 32 more than 6 round result of the calculation should be how much?
24, Xiaoqiang doing calculation problems (1800 - □) ÷ 25 +192, the lack of attention to problems in the brackets, first in the number divided by 25 □, and then calculated according to the order of addition and subtraction may 1968. This road should be, how much?
25, all the natural numbers, write down order, starting from 1 are: 12345678910111213 ... ... and try to determine the location of the first 200 numbers appear
26, A, B, C three companies to the automobile factory orders for 18 cars, the average distribution of the three companies under the contract, no money payment C,UGG boots, a 10-car company to pay the money, and Company B to pay money for 8 vehicles, 90 million deal with C Company . The two companies A and B the number of million should be recovered?
27, a round flower bed, go around it is 90 meters, if along every six meters around it planted a lilac, and then in between the adjacent two lilac planted equidistant from two strains of Chinese rose. Q lilac and rose for the number of strains of the plant?
28, a basket of apples, even the basket weighing 35 kilograms, grab a half after the kindergarten children to give, then let the rest of the half to give first-graders, with the remaining apples and 11 baskets kg. Asking how much weight kg baskets of apples?
29, a furniture factory to produce a number of desks. Daily production of 60 originally planned, the actual day, more than originally planned production 4, the results 1 day in advance to complete the task. The original plan how many desks to be produced?
30, a story book, 131 pages, published pages of this book were to be the number of digits?
31, a novel of 320 pages, the number
32, row a dictionary page shared the 2886 figure, and asked how many pages of this dictionary?
33, A and B two places 200 km apart. Cars line the entire distance to 5 hours walk to 40 hours, starting from A Xiaoming, the first change after 5 hours by car on foot, he was from A to B to require a total of few hours?
34, repair of a road team a 4200 meters long road, originally planned to repair 4 meters per person per day, sending 21 people to complete, actual construction, increase by 4 people,UGG boots clearance, can be done several days ahead of schedule ?
35, planting a tree-planting group, if each plant 5, left 14; If everyone planted seven to lack of 4. How many people in this tree-planting team?
36, the school will be awarded a number of pencil roll student. If the 9 per person per prize, for lack of 45; if each prize 7,UGGs, the missing seven. How many good student? How many sticks of pencil?
37, the school enrolled students to the number of new allocation of quarters. If 12 people live in each room, no place is 34; if 14 people live in each room, the air out of four rooms. Find the number of student hostels? How many students stay?
38, young pioneers to plant trees. If each of 5 Pits dug, and dug 3 Pits per person; if one of the 2 dug 4, and the rest of the dig six Pits to all Pits just finished digging. Total number of young pioneers dug Pits?
39, 80 parts, distributed into 8 bags, each bag 10, in which the parts contained within 7 bags are 50 grams each, 1 each of the parts are inside bags 49 grams. The 8 bags of mixed together. Can you weigh one, put a heavy loading 49 g bags to find out which parts of it?
40,60 6 only orange-packing bags, 10 per bag, 5 bags which are filled with 50 grams of the weight of oranges and another bag of each weight is 40 grams, which 6 bags of mixed together, you can weigh one, containing 40 grams of weight put orange bags which look out?
41, bags of washing powder, a total of 10 reactors (each stack no less than 10 bags), 9 known to the heap is a qualified product, 1 kg per bag, a heap is unsatisfactory, each containing 0.9 kg , from the shape is not apparent. Can you weigh one can identify with substandard products?
42, Xiao Ming family bought a basket of oranges to the family. If one of the two sub-4 per person, and the remaining 2 per min, the excess of 4; 1 point if one of 6, and the remaining 4 points each, while another 12 missing. How many homes bought Xiaoming orange? Xiaoming how many people at home?
43, now have chickens, rabbits were living in a cage, known beheaded, and a total of 35 buck, rabbit feet and a total of 94 feet, and asked chicken, how many rabbits have?
44, face value is 2 yuan, 5 yuan RMB total of 27, totaling 99. Two kinds of face value of RMB is the number of sheets?
45, has A, B, C three exercise books, the price are the 7 angle, 3 angle and 2 angle. A total of three exercise books bought 47 and paid 21 yuan 2 corner, buy exercise books and B C of this number is 2 times the kind of exercise books. Exercise books bought three of the number of each?
46, they both forgot Yan and Luliang distance of 2,000 meters from the two meet each other halfway, Wang Xin lines per minute, 110 meters, 90 meters Luliang lines per minute, if a dog and Wang Xin At the same time in the same direction and the line, 500 meters per minute, ran back immediately after the encounter Luliang Wang Xin, Wang Xin and then immediately ran toward the Luliang encountered, so back and forth, until the two met up. The dog ran a total of how many meters?
47, two students from 18 kilometers away from the two opposite the line of departure, a student riding a bicycle speed of 15 km per hour between the two teams kept from contact. A line of 5 kilometers per hour, team, B team line 4 kilometers per hour, the two teams met, the students were riding a bike how many kilometers of the line?
48, A, B distance of 400 km between the two places, A and B while the two vehicles out from the two relative, a line of cars 38 km per hour, traveling 42 kilometers per hour, car B, a pigeons 50 km per hour speed and a car on the same flight, car and flew to the B, B encounter a car and went back toward the car, this has been flying down the number of kilometers of flying pigeons when two vehicles meet?
49, A, B and two in the same ring on the runway to the speed of their running, if two people the same time and contrary to the line, B, after running 4 minutes the first time they met, a run to 6 minutes a week, B the number of minutes to run a week?
50, A and B while the two vehicles from the east and west out of the two relative, 6 hours after the encounter, if a car less line 9 km per hour, B car multiline 6 km per hour , so that after 6 hours, the two vehicles has been in the rest of journey distance is 19 times. East and West to the number of kilometers away?
51, A and B while the two vehicles from the A, B the two meet each other halfway, 60 kilometers away from the A to the first encounter, their departure to the other party immediately after the return, on the way and at a distance A land of 40 kilometers meet. A, B between the number of kilometers apart?
52, while trucks and buses from the opposite two sides of the line, the line 48 kilometers per hour, truck, bus line 42 kilometers per hour, two vehicles 18 kilometers away from the midpoint of the meet, find the two sides of the number of kilometers away?
53, climbing from both the Express and the two opposite things out, are known to express the line 40 kilometers per hour, after 3 hours, Express has been passing through the midpoint of 25 km. Then with slow also 7 km away. The number of one thousand meters per hour, slow line?
54, A, B and two around the circumference of the ring of 1000 square meters of walking, are known to walk a 125 meters per minute, the speed of B is a 2-fold, and now the back of a 250 meters in the B, How many minutes to catch up with a B?
55, a school district selected 50 students to participate in essay competitions and mathematics competitions, the results were 3 winners of two competitions, 27 were not winning two competitions, essay contest winners are known 14 people, and asked the award-winning math game, how many people?
56, from 1 to 200 all natural numbers, neither is a multiple of 5, nor is it a multiple of 8, the number of how many?
57, in the arithmetic progression 3,12,21,30,39,48, ... the first few numbers in the 912?
58, his brother 12 years older this year than Mary, 8 years ago, Mary's brother's age is 4 times this year, two of the old?
59, has a ranch, uniform growth of grass every day (equal to the amount of grass growing every day), if the 24 head of cattle grazing, then six days after eating grass, if the 21 head of cattle grazing, then eight days eating End of forage,cheap UGG boots, assuming the amount of grazing per cow are equal. (1) If the grazing 16 head of cattle, a few days to eat grass? (2) To never eat grass, up to put the number of cows?
60,56 × 3 +56 × 27 +56 × 96-56 × 57 +56
61,98766 × 98768-98765 × 98769
62,98766 × 98768-98765 × 98769
63,1 5 corner angle and a total of 32 gold coins, with a total face value of 8 yuan 4 angle, then a dime and 5 have several dime?
64, Aunt Wang family has 32 chickens and rabbits, rabbits are known to the public as much as the quantity and females, the number of hens is 8 times the number of roosters, chickens and rabbits that the number of legs?
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