1. To transport a batch of goods, 14 tons more than the remaining 1 / 3, and the ratio of the remaining to the shipped is 2:3. How many tons are there in total? 2. The ratio of goods in warehouse A to goods in warehouse B is 6:5. The goods in warehouse C are 1 / 3 less than those in warehouse B and 320 tons less than those in warehouse A. how many tons are there in warehouse B? 3. A factory processes a batch of parts and gives them to Party A and Party B according to the ratio of 3:5, and then gives the rest to Party A and Party B equally. Party A gets exactly 1 / 15 of his first share? (please tell me why I solve the problem in this way, and I will reward points)

1. To transport a batch of goods, 14 tons more than the remaining 1 / 3, and the ratio of the remaining to the shipped is 2:3. How many tons are there in total? 2. The ratio of goods in warehouse A to goods in warehouse B is 6:5. The goods in warehouse C are 1 / 3 less than those in warehouse B and 320 tons less than those in warehouse A. how many tons are there in warehouse B? 3. A factory processes a batch of parts and gives them to Party A and Party B according to the ratio of 3:5, and then gives the rest to Party A and Party B equally. Party A gets exactly 1 / 15 of his first share? (please tell me why I solve the problem in this way, and I will reward points)


1. Suppose that the delivered goods are 3x tons, and the remaining goods are 2x tons, then 3x = 1 / 3 * 2x + 14 x = 6, so there are 3x + 2x = 5x = 30 tons in total. 2. Suppose that there are 6x tons of goods in warehouse A and 5x tons of goods in warehouse B, then there are 5x-1 / 3 * 5x = 6x-320 x = 120 in warehouse C, so there are 5x = 600 tons in warehouse B. 3



1: A new road is built in a city. Lighting lamps are installed at equal distance on both sides of the road, 512M from a to B, 576m from B to C. It is required to have a desk lamp at a.b.c. at least () lamps are installed?
2: A power transmission circuit can supply power to three air conditioners at the same time. A company has installed one air conditioner in each of four rooms. Think about it. In every 24 hours, can each room use air conditioner for () hours?
3: According to the rules of 1,8,27, (), 125216, the number in brackets should be 64
Kneeling for answers``···


1: A new road is built in a city. Lighting lamps are installed at equal distance on both sides of the road, 512M from a to B, 576m from B to C. It is required to have a desk lamp at a.b.c. in this way, at least () lamps are installed. That is to find the greatest common divisor of 512 and 576: 64. Therefore, there are 8 sections from a to B, 9 table lamps. There are 9 sections from B to C, 10 table lamps



1. A number is composed of two ones and three percentages. The number is written as a decimal (), and the percentage is (). Its counting unit is (). It is composed of () such counting units
2. There are 40 male workers and 20 female workers in workshop a, while there were 23 male workers and 25 female workers in workshop B. now () male workers should be transferred from workshop a to carry out one-to-one exchange with female workers in workshop B, so that the proportion of male and female workers in these two workshops can be the same


Question 1 2.01
201/100
1/100
two hundred and one
Second question
Set up exchange x person
(23+x)·(20+x)=(40-x)·(25-x)
x=5



Answer a math problem of grade 6 in primary school. Please explain it in detail. Thank you
Use the quotient of 3 / 16 divided by 0.375 to find the product of 1 / 5 and 25. What's the quotient


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There is a set of continuous natural numbers 1,2 If the average of the remaining number is 16 and 4 / 15 (that is, the numerator is 244 and the denominator is 15), what is the number? Please write down the process of solving the problem


In fact, this problem is not very difficult. The most important thing is reasoning
Because the average number is 16 and 4 / 15, the sum of continuous natural numbers in this group is 1 + 2 +. + N, that is, (1 + n) × n △ 2. If the missing number is x, then (1 + n) × n △ 2-x = 16 and 4 / 15, We can know that n-1 is an integral multiple of 15 [otherwise, the denominator can't be 15]. Then we can know that n is 16 or 31 or 46. For example, if n is 16, the average value after any less number is less than 4 / 16 and 15, and if n is 46 or greater, the average value after any less number is more than 4 / 16 and 15, so NK can only be 31, and then it's not difficult to calculate the value of X



1. The length and width of a cuboid are 5cm. After cutting it from the midpoint of its length into two identical cuboids, the surface area of a cuboid is 120 square decimeters less than that of the original cuboid. What is the volume of the original cuboid?
2. The price of the two commodities is 7:3. If their prices rise by 70 yuan, then their price ratio is 7:4. What are the original prices of the two commodities?
3. Add a percentage sign to a number, and the number will be reduced by 1.98. What is the original number?


I happen to be a sixth grade student. 1. The length and width of a cuboid are 5cm. After cutting it from the midpoint of the length into two identical cuboids, the surface area of a cuboid is 120 square decimeters less than that of the original cuboid. What is the volume of the original cuboid? First of all, this question should be 5cm and 120cm in width and height



When a and B meet each other, they make the same voyage. When a and B arrive at place B and place a, they both return to the original route immediately. When the two ships meet for the second time, ship a travels 1 km less than ship B. if there is an interval of 1 hour and 20 minutes between the first meeting and the second meeting, How many kilometers per hour is the flow rate of the river?


Let a speed V A, B be v b, water speed V water, the first meeting point C, the time from sailing to the first meeting t;
Then AC = BC, so v b = V A + V water; ab = (V A + V water) * t + (V B-V water) * t = (V A + v b) * t, the first time for a and B to arrive at B and a is 2T
When the encounter time is AB / (V B + V water + V A-V water) = AB / (V A + v b) = t, then 2T = 1 hour 20 minutes, t = 2 / 3 hours
When the two ships meet for the second time, the speed difference between a and B is 2 * v
So the water velocity is 1km / (2 / 3) * 1 / 2 = 3 / 4km / h



1. A cylindrical cup with a bottom diameter of 24 cm is filled with water. There is a cone iron block with a bottom diameter of 12 cm and a height of 18 cm in the water. When the iron block is taken out of the cup, how many cm will the water surface drop?
2. The bottom radius of a cone is three fourths of that of a cylinder, and the volume of the cylinder is eight ninths of that of the cone. What is the ratio of the height of the cone to the height of the cylinder?
I'm so anxious! Thank you for taking care of me!


1. A cylindrical cup with a bottom diameter of 24 cm is filled with water. There is a cone iron block with a bottom diameter of 12 cm and a height of 18 cm in the water. When the iron block is taken out of the cup, how many centimeters will the water surface drop? The volume of the falling water = the volume of the cone iron block. The volume of the cone iron block is (12 △ 2) × (12 △ 2)



20% of 1.20 meters is equal to ()% of 50 meters
2. Number a is 40, number B is 50, number a is less than number B ()%
3. Plant a batch of trees, 385 live and 15 dead, the survival rate is ()%
If 180 trees live, the survival rate is 90%, a total of () trees are planted; if the survival rate is 96%, 200 trees are planted, and () trees are dead
This year's output is 20% higher than that of last year, this year is () of last year, and last year is () lower than that of this year; if last year's output was 400 tons, this year's output was () tons; if this year's output was 400 tons, last year's output was () tons
The 5.4m long timber is divided into 4 sections, each section is () m long, each section accounts for ()% of the total length, and 1m accounts for ()% of the total length
6. For a cup of sugar water, the sugar content is 20%, and the ratio of sugar to water is ()
7. (1) there are 200 grams of sugar water, in which sugar is 1 / 4 of water(
(2) There are 200 grams of sugar water, of which sugar is 1 / 4 of water. If you add another 50 grams of water, then the sugar content is 100%(
8. (1) 1 / 5 is 1 / 3 of (). 1 / 5 is 1 / 3 of (). 1 / 5 is 1 / 3 of ()
(2) 8 tons is 1 / 4 less than () tons, () meters is 1 / 3 more than 15 meters, () meters is 1 / 3 less than 15 meters
9. For a project, Party A will complete it in 12 days and Party B will complete it in 20 days. The ratio of working time between Party A and Party B is (), the ratio of working efficiency is (), and the cooperation between Party A and Party B will be completed in () days
10. A cuboid is composed of 12 cuboids whose edges are 2 cm long. The largest surface area of cuboid is (), the smallest is (). The volume of cuboid is ()
11. A / 2 / 3 = B / 3 / 4 = C × 3 / 5


Wow, it's still a process... Think for yourself: 1) 8% 2) 20% 3) 96.1% 162 8 4) 120% 16.67% 480 333.33 &; 5) 1 25% 25% 6) 1:47) 3:10 16% 8) 3 / 5 1 / 15 3 / 59) 3:5 5:3 15 / 210) 8cm &; 4cm &



The natural number n has 45 positive divisors. The minimum value of n is
7 8. Take two different numbers from the 25 natural numbers 1 to 25 at a time, so that the sum of them is a multiple of 4___________ There are two different methods
8. A criminal fled from a to port B by the sea at the speed of 100 kilometers per hour. Our police arrived at a 10 minutes after the criminal left a, and immediately chased B at 120 kilometers per hour. If there was no accident, the police could arrive at B only one minute after the criminal arrived at B. but "the net was clear, but there was no leakage". On that day, there was a rainstorm, and the CB road was muddy, The speed of the criminal here should be reduced by 20%. With excellent training, our police only reduced the speed by 10%. As a result, they caught the criminal 200 meters away from B and captured him. (1) find the distance ab. (2) find the distance AC. (the picture shows a line breaking AB, and C is any point on the line.)


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