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Anonymous users2024-02-16The special value method is a common method in our quantitative relations, and there will be questions in the exam every year that can be quickly solved by the special value method. Today we will talk about the special value method.
The travel problem is the study of the relationship between speed, time, and distance in the motion of an object. Most of the travel problems can be solved by finding two known quantities of speed, time, and distance and using the core formula.
Next, we will focus on the key points of travel problems and their formulas.
1.Knowledge points - core formulas.
Formula: distance = speed time.
2.Knowledge points - proportional relationship.
Formula: Time is the same, speed ratio = distance ratio.
The speed is the same, the time ratio = the distance ratio.
The distance is the same, the speed ratio = the inverse proportion of time.
3.Knowledge points - encounter problems.
Formula: Encounter Time = Encounter Distance Speed and.
4.Knowledge points - chase the problem.
Formula: Catch-up time = catch-up distance speed difference.
5.Knowledge points - the problem of running water.
Formula: Downstream speed = boat speed + water speed.
Speed against the water = speed of the boat - speed of the water.
Boat speed = (speed with the water + speed against the water) 2
Water velocity = (velocity against the water - velocity against the water) 2
6.Knowledge points - train bridge problem.
Formula: Train speed Time = train length + bridge length.
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Anonymous users2024-02-15If you don't have a good foundation in mathematics, you should do it last, and only do the types of problems you are familiar with, such as engineering problems, economic problems, geometry problems, etc. Do half of the questions, and the other half are all C
If you're good at math, you can do anything.
If you take the Jiangsu, Guangdong, and Zhejiang exams, you must not give up mathematics.
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Anonymous users2024-02-141. The basic formula for profit problems.
Profit = selling price - cost; Profit margin = (profit cost) 100%; Selling Price = Cost (1 + Profit Margin); Discount rate = current price Original price.
2. Exclude first and then bring in.
3. The essence of "change" is growth, and according to the formula, growth = current value - base period value; The "rate of change" is essentially the growth rate, according to the formula growth rate = (current period value - base period value) base period value.
4. There are many test points included in the calculation problems of the line test, such as common multiples of the convention, chickens and rabbits in the same cage, equal difference series, factor factorization, indefinite equations, etc.
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Anonymous users2024-02-13The basic quantitative relationship between speed, time, and distance:
1) Speed Time = Road Plexus Path.
2) Distance Time = Speed Vertical Return.
3) Distance Speed = Time.
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Anonymous users2024-02-12300 2 (90-70) = 30 minutes.
90 30-300 = 2400 meters.
2400 90 = 26 and two-thirds (Fen Sun Que Zhong) Answer: After 26 and three minutes of elimination, you can see B when you shoot Kai Zhi.
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The content of the national examination and the provincial examination is the same, the administrative ability test and the essay, the national examination is more difficult than the provincial examination, the national examination is more than the provincial examination, and it is for the country, the question type is the same, the line test is verbal comprehension and expression, quantitative relationship, data analysis, logical reasoning, common sense, the question type of the argument is to summarize and summarize, put forward countermeasures, implement, comprehensive analysis, article writing. >>>More
1) The origin of chickens and rabbits in the same cage.
Problem solving skills: geometric schematic diagram plus basic formula of stroke. >>>More
This varies from person to person, depending on which modules you have your own strengths and weaknesses. For example, my strengths are data analysis, logical judgment, and quantitative relationships, and my weaknesses are common sense, verbal, and graphical reasoning. I arrange it like this, five minutes before the start of the exam to do common sense, do not think too much and entanglement directly look at the question and paint the card, twenty-five minutes to do data analysis, and then the figure pushes similar to common sense without entanglement directly painted card, logical judgment for thirty minutes, speech for thirty-five minutes, and finally after all the answers are painted and then do the quantity, can do a few right, do a few, and have no time for the rest to be c
The questions are not difficult, they are all some common sense, most people can't finish it, if you can do it, your score will be very high, and the actual test of reaction ability is quite prominent. Share some experience with you, I hope it can help you. >>>More
Method] 1. Quantitative Relationship Question:
If you are strong in mathematics, have flexible skills, and can basically sit on a problem in about a minute, you should do mathematics first, otherwise, you will give up the quantitative relationship problem. >>>More