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A travel agency organized two tour groups A and B with a total of 80 people to travel to Lushan Mountain and Wutai Mountain respectively. It is known that the number of group A is more than two times that of group B, with 5 people B what are the numbers of the two tour groups?
There are X members in group B and 2x + 5 members in group A
X+2X+5=80
3X=80-5
X=25
Group A: 25 * 2 + 5 = 55 (people)
A company is going to organize some employees to travel in Huangshan during the May Day holiday. Now we have contacted two travel agencies, a and B, both of which offer 400 yuan
One person, and two groups of more than 10 people have introduced preferential measures; a travel agency gives a 25% discount to each passenger, while B group gives a 20% discount to each passenger. If you are a leader, how would you choose?
Choose B!
However, if employees have to pay part of their own expenses, they should choose A. after all, if someone doesn't have to pay them,
A school plans to organize some teachers and students to travel during the summer vacation. The number of tourists is estimated to be between 100 and 250. The service items of a and B travel agencies are different from each other
After negotiation, a travel agency said that it could give each passenger a 70% discount. B travel agency said that it could free 10 passengers. The other 20% discount. Which travel agency did the school choose to pay less travel expenses
1000x*70%=1000x*80%-10000
x=100
That is, when the number of people is 100, the two costs are the same
1000x*70%>1000x*80%-10000
x
A unit is going to organize some employees to travel to Zhangjiajie during the golden week
At the same time, the two travel agencies have introduced preferential measures for groups with more than 10 people: Travel Agency a gives 25% discount to each tourist, while travel agency B exempts one leader's fee, and the rest gives 20% discount
1. The two travel agencies charge the same number of people
2. Please explain by calculation: in what range do the number of tourists choose travel agency a with less cost? In what range do the number of tourists choose travel agency B with less cost?
The equation!
When the number of people = 0.8 / (0.8-0.75), i.e. 16 people, the two families charge the same fee
Of course, when the number is more than 16, choose a, otherwise choose B
A and b read the same 300 page book, a read six pages in 10 minutes, b read six pages in 5 minutes, find (1) the speed ratio of a and B to read the book; (2) the time ratio of a and B to finish the book
The time for a to read one page is: 10 / 6
The time taken by Party B to read one page is: 5 / 6
The speed ratio is (5 / 6) / (10 / 6) = 1:2
The time ratio was 2:1
To celebrate the June 1 children's day, the students made 220 flags of three colors: red, yellow and blue, and three small flags were placed on 1 flags, 2 flags and three red flags. How many of these three flags are there?
And make it clear why
220/(1+2+3)=220/6=36…… 4 (divided into groups, one blue, two yellow and three red, and the rest in order of one blue, two yellow and three red)
Blue Flag: 36 * 1 + 1 = 37 sides (+ 1 because the first side is blue)
Yellow flag: 36 * 2 + 2 = 74 (+ 2 because the second and third is yellow)
Red flag: 36 * 3 + 1 = 109 (+ 1 because the last one is red flag)
OK!
A stationery shop sells an electronic dictionary, and each one will make a profit of 15 yuan. After four fifths of the sales, each one will be sold at a price of 3 yuan. When all the dictionaries are sold out, the total profit will be 864 yuan. How many such electronic dictionaries have been sold in the stationery shop?
There are x sets
4x/5*15+x/5*(15-3)=864
x=60
After a mall increases the price of sportswear by 50% of the purchase price, it writes "big reward, 20% discount". As a result, each sportswear still makes a profit of 20 yuan, and the purchase price of sportswear is () yuan
A. 110B. 120C. 130D. 100
The purchase price is x yuan, and the meaning of the article is: (1 + 50%) x × 80% - x = 20, and the following: (1 + 50%) x (1 + 50%) x-80% - x = 20, and & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; The price of sportswear is 100 yuan
1. The lower right figure is an iron part whose volume is known to be 376.8 cubic centimeters. Find the volume of the conical part (that is, a cylinder and a cone, both of which are 10 centimeters high)
376.8 △ 4 = 94.2 square centimeter
The distance from a to B is divided into three sections: uphill, level road and downhill. The ratio of each section is 2:3:5. Xiaoliang takes 6:5:4 to walk these three sections. It is known that Xiaoliang's speed on level road is 4.5 kilometers per hour. It takes him five hours to walk from a to B. Q: how many kilometers are there between a and B?
The time of level road: 5 × 56 + 5 + 4 = 53 (hours); the distance of level road: 4.5 × 53 = 7.5 (km); 7.5 △ 32 + 3 + 5, = 7.5 × 103, = 25 (km); a: the distance between a and B is 25 km
RELATED INFORMATIONS
- 1. A and B go from a to B at the same time. When a goes to B, they immediately return and meet B 32 kilometers away. The speed ratio of a and B is 5:4. How many kilometers did B travel when they met?
- 2. Callia and Xuanxuan each have some cartoon stickers. If callia gives Xuanxuan 25 stickers, Xuanxuan's stickers will be three times as much as callia's. If Xuanxuan gives callia some stickers, callia's stickers will be six times as much as Xuanxuan's. how many stickers can Xuanxuan have at least?
- 3. By bus, 40% of the total number of passengers get off the bus, and another 9 people come up. This is one twentieth more passengers than before. How many people are there in the bus? The clothing store buys 100 sets of sportswear, each of which costs 200 yuan, and sells them at a price of 50% of the expected profit. When 60% of the sportswear is sold, the rest of the sportswear is sold at a discount. After 100 sets of sportswear are sold out, the expected profit is reduced by 18%. How much discount is the clothing sold
- 4. The opposite number of A-B is () A. a+bB. -（a+b）C. b-aD. -a-b
- 5. Lele supermarket carries out promotional activities, drinks "buy ten get one free". A bottle of coke is 6 yuan, Xiaohong buy 45 bottles of coke, how much do you have to pay?
- 6. A beverage store is engaged in sales promotion, so you can get one free for four drinks. The current price of a bottle of coke is 0.6 yuan lower than the original price. How much is the current price of this bottle of coke,
- 7. There is a peach tree behind Uncle Wang's house. His naughty grandson picks some peaches from the tree every day and shares them with his neighbor's friends. On the first day, he picks one tenth of the total number of peaches. On the next eight days, he picks 19, 18, 17 After nine days of picking, there are still 10 peaches left on the tree. How many peaches are there in the tree?
- 8. The monkey mother picked 17 peaches and gave them to three baby monkeys, 1 / 2 to Dabao, 1 / 3 to Erbao and 1 / 9 to Sanbao. How many peaches should each baby monkey give?
- 9. The monkey mother picked 17 peaches for her children to eat. The big monkey said it would get 3% of the total, the second monkey would get 2% of the total, and the little monkey would get 3% The mother monkey asked the three monkeys not to cut the peaches apart. Do you have any good idea?
- 10. Mother monkey picked some peaches. The little monkey ate one seventh of the total on the first day, and the rest one third on the second day. What percentage of the total on the second day
- 11. There is a pile of chessmen. After they are divided into five equal parts, there are four pieces left. After three of them are divided into five equal parts, there are three pieces left. After two of them are divided into five equal parts, there are two pieces left. How many pieces are there at least? I always think that the last one should be greater than 2, so it's 184. Now it seems that no more than 2 is also in line with the meaning of the question, should be right, is 59. Liuking 123 uses arithmetic, which should be the correct answer.
- 12. Go to the park with friends To be simple, I use it for speech in my class. I just say what I played in the morning and what I played in the afternoon
- 13. The 59 students in the class went to the park and rented 17 bicycles for 3 people and 4 people. The class was just full. How many bicycles for 3 people and 4 people?
- 14. This new year's Day party host our class has me, I do not know what to say! If five people have a good answer, I will increase the reward
- 15. There are three rooms and double rooms in the room department of a hotel
- 16. There are three rooms and double rooms in a hotel. The charging standard is as follows: yuan / room · day, 210 for three rooms and 180 for double rooms 【1】 If three of the seven individual guests live in a three person ordinary room and four in a double room, and each room is just full, how much is the total accommodation fee for these seven people per day? 【2】 In order to attract tourists, a 50% discount for group stay is implemented. During the period of a 50 person travel discount, the group will stay in the four hotels and live in some ordinary rooms for three people and ordinary rooms for two people. If each room is just full and a total cost of 2070 yuan is spent on one day, how many ordinary rooms for three people and ordinary rooms for two people will the group live in? Equation of one degree with one variable!
- 17. There are three rooms and double rooms in the room department of the hotel. The charge data is shown in the table below. In order to attract tourists, 50% discount for group stay is implemented. A 50 person hotel is available During the discount period, the tour group stayed in the hotel and stayed in some three person ordinary rooms and two person ordinary rooms. If each room is just full and the total cost of accommodation is 1510 yuan per day, how many three person ordinary rooms and two person ordinary rooms did the tour group stay in? The first is the ordinary version, and the second is the luxury version
- 18. A hotel room department has 3 rooms, double room, charge
- 19. A tourist group stays in a hotel. If there are five people in each room, there are four people who have no place to live. If there are six people in each room, there is only one room with four people and three rooms vacant Find the number of rooms and the number of the tour group. Use the quadratic equation to do the application solution
- 20. How many rooms are there in a tourist group? How many people are there in a tourist group?