Question 1. The clerk changed a 5 yuan RMB and a 50-cent RMB into 28 yuan RMB with face values of 1 yuan and 1 respectively. How much RMB do you want?
Question 2: There are 50 RMB * * with total face value 1 16 yuan. As we all know, one yuan is more than two yuan. How many RMB are there in three denominations?
Question 3: There are 400 movie tickets in 3 yuan, 5 yuan and 7 yuan, with a value of 1920 yuan, among which 7 yuan and 5 yuan have the same number of votes.
How much is the movie ticket?
Question 4: Two kinds of cars are used to transport goods. Each car contains 18 boxes, and each car contains 12 boxes. Now there is a 18 car, worth 3024 yuan. If each box is cheap in 2 yuan, then the goods are worth 2520 yuan. Q: How many cars are there?
Question 5. A truck can transport ore 20 times a day in sunny days and 12 times a day in rainy days. It is transported 1 12 times once, on average.
Lucky 14 times. How many days has it rained these days?
Question 6. A batch of watermelons has been delivered and will be sold in two categories, the large one in 0.4 yuan and the small one in 0.3 yuan. In this way, these watermelons are worth 290 yuan. If the price per kilogram of watermelons is reduced by 0.05 yuan, this batch of watermelons can only be sold in 250 yuan. Q: How many kilograms is the watermelon?
Question 7. In the darts competition, it is stipulated that each player gets 65,438+00 points, and each player misses the target and gets 6 points. Each player throws 10 times and scores * * * 152 points, in which player A scores more than player B 16 points. Q: How many times did each player win?
Question 8. There are 20 questions in the math contest. Every time he answers a question correctly, he gets 5 points. If he answers a wrong question, he will not only get no points, but also deduct 2 points backwards. Xiaoming got 86 points in this competition. Q: How many questions did he answer correctly? 1、 .
2. Fill in the blanks according to the law: 0.987654, 0.98765, 0.9877, 0.988, 1.0.
If a number is divided by 7, the remainder is 3. If three times this number is divided by seven, the remainder is.
4. Among the divisors in 2004, the divisors greater than 100 and less than 200 are.
5. In the addition formula on the right, there is a number in each □, and the sum of the numbers in all □ can reach the maximum.
6. Three people, A, B and C, roll the dice three times each, and the product of the points rolled is 24. If the sum of the points cast by each person is arranged in descending order, then the number of points is 3. (Minutes: the number on the upper side. The points on the six sides of the dice are 1 to 6).
7. Add a decimal point before a four-digit number and subtract it from the original four-digit number. The difference is 1803.6, so the original four digits are.
8、 .
9. If
.
10, four of the eight natural numbers 1 to 8 form a four-digit number, which increases from unit to thousand, and the difference between any two digits is not 1, so this four-digit number * * * is occupied.
1 1, a, b and c are updated regularly. Website A is updated every other day 1 time, website B is updated every other day 1 time, and website C is updated every three days 1 time. Within a week, three websites update their websites at least once.
12 and figure 1 * * have a square.
13, as shown in Figure 2, the side length of each cell is 1 unit length. It takes 5 seconds for a beetle to crawl 1 unit length in the horizontal direction, 6 seconds for a beetle to crawl 1 unit length in the vertical direction, and 1 second for one revolution. It takes at least 2 seconds to climb from point A to point B.
14. Divide the length and width of a rectangle with a length of 15 cm and a width of 9 cm into three equal parts. Any point in the rectangle is connected with these points and vertices, as shown in Figure 3, so the area of the shaded part is square centimeters.
15. Fold along the dotted line in Figure 4 to form a cuboid with a volume of cubic centimeters.
16, Xiao Yong scored three subjects, with an average score of 98 if language is not counted; If mathematics is not counted, the average score is 93; If English is not counted, the average score is 9 1. Xiao Yong's average score in three subjects is.
17, A, B, C and D play round robin (i.e. each team 1 game). After a while, A played three games, B played two games, and C played 1 game. At this time, D played a game.
18, the password of the suitcase is three digits. Xiaoguang said, "It's 954." Xiao Ming said, "It's 358." Liang Xiao said, "It's 2 14." Xiao Qiang said, "You all guessed this number from different positions." The password of this box is.
19, an alumni gathering, attended by 50 people. In the classmate industry attending the party, each girl knows a different number of boys, which just forms a series of continuous natural numbers, with the most knowing and the least knowing. 15 people. A girl attended the party.
20.20031October 28th, 10, Xu, the captain of Shenzhou 5 manned spacecraft launch test team, revealed that China will launch Shenzhou VI manned spacecraft in the second half of 2004, and three people will travel in space for seven days on Shenzhou VI. If Shenzhou VI and Shenzhou V both circumnavigate the earth in an average of 90 minutes.
2 1. It takes 15 seconds for the train to pass through a 300-meter-long tunnel and 180-meter-long bridge. The body length of this train is 100 meter.
22. There are three people in a family. My parents are three years older. Now the total age of their family is 80 years old. 10 years ago, the total age of the whole family was 5 1 years old, and my daughter is years old this year.
23. The bookstore bought a book at the price of 10.08 yuan each, and the price of each book was 16.8 yuan. When selling 10 books, it not only recovered all the costs, but also made a profit of 504 yuan. This bookstore bought this kind of book.
24. The monitor plans to buy some diaries with the class fee as prizes for entertainment activities. If you buy every diary of 3.5 yuan, there is still 2.5 yuan left. 4.2 yuan started to buy the same number of diaries, except 2.4 yuan. Then the monitor plans to buy a diary.