There are 50 goats, 3 more than 4/5 goats. How many sheep are there?
3. Read a book with 120 pages. You read the whole book 1/3. How many pages are exactly 5/6 of the whole book?
4. A bottle of oil is 4/5 Jin, and 3/ 10 Jin has been used. 1/2 how many kilograms of oil does it take?
5. A bag of rice 120kg. On the first day, you eat 1/4, and on the second day, you eat the rest 1/3. How many Jin did you eat the next day?
6. For a batch of goods, one car can transport 1/8 at a time, and how many parts can be transported four times? If this shipment weighs 1 16 tons, how many tons have been shipped?
7. A factory used 28 tons of water in September,1planned saving in October 1/7. /kloc-How many tons do you plan to save in October?
8. The base of parallelogram is 24 meters long and its height is 3/4 of the base. What is its area?
9. Human blood accounts for113 of body weight, about two-thirds of blood is water, and dad's weight is 78kg. How many kilograms is his blood?
10, Grade 6 students participated in tree planting, boys planted 160 trees, and girls planted 5 more trees than 3/4 boys. How many trees do girls plant?
1 1. The number of students in the fourth grade of Guangxin Primary School is 4/5 of that in the fifth grade, and that in the third grade is 2/3 of that in the fourth grade. If the number of students in grade five is 120, how many are there in grade three?
12, two cars A and B leave from A and B at the same time, with a distance of 420km. After 5 hours, A walked 3/4 of the whole journey and B walked 2/3 of the whole journey. How many kilometers are the two cars apart?
13, 120 trees were planted in grade five, and the number of trees planted in grade six was 7/5 of that in grade five. How many trees were planted in the fifth and sixth grades?
14. A road of 12/5km was built. 2/3km was built in the first week and 1/3 was built in the second week. How many kilometers were built in two weeks?
15. A highway is 7/8 kilometers long. 1/8km was built on the first day. How many kilometers will the total length of 1/2 be more?
16, Xiaohua read a 96-page story book. The first day he read 1/4, and the next day he read 1/8. How many pages have you read in two days?
17. A book has 150 pages. On the first day, Xiao Wang read110, and on the second day, he read115. Which page should he start from on the third day?
18, the school transported 2/5 tons of cement, and the yellow sand transported was 5/8 of the cement, which was 1/8 tons more. How many tons of yellow sand were shipped?
19, Xiao Wei and Xiaoying contributed 2 :5 to Project Hope. Xiaoying donated 35 yuan. How much did Xiao Wei donate?
The TV factory plans to increase its output by two-fifths this year compared with last year. Twenty thousand TV sets were produced last year. How many TV sets are planned to be added this year?
2 1. Two cars, A and B, leave from AB at the same time. A walked 5/ 1 1 of the whole journey. If A drives at a speed of 4.5 kilometers per hour, B drives for 5 hours. How many kilometers are AB apart?
22. A bus and a truck leave from Party A and Party B at the same time. The speed of a truck is four-fifths that of a bus. After a quarter of the journey, the truck and the bus met for 28 kilometers. How many kilometers is it between A and B?
23. Party A and Party B walk around the city, with Party A walking 8 kilometers per hour and Party B walking 6 kilometers per hour. Now both of them start from the same place at the same time. After B meets A, it will take another 4 hours to return to the original starting point. B How long does it take to go around the city?
24. Party A and Party B walk from place A to place B at the same time. When Party A completes the whole journey of 1\4, Party B is still 640 meters away from B. When Party A completes the remaining 5\6, Party B completes the whole journey of 7\ 10. What's the distance between AB and place?
25. Two cars, A and B, start from A and B at the same time and drive in opposite directions. Car A travels 75 kilometers per hour, and it takes 7 hours for car B to complete the journey. Three hours after the departure of the two cars, the distance is15km. What is the distance between a and b?
26. One or two people should go this way. A It takes 30 minutes to walk and 20 minutes to walk. After walking for 3 minutes, A found that she didn't take anything, which delayed for 3 minutes. How many minutes does it take to walk from A to B?
27. Two cars, A and B, start from A and drive in the same direction. A walks 36 kilometers per hour and B walks 48 kilometers per hour. If car A leaves two hours earlier than car B, how long will it take for car B to catch up with car A?
28. Party A and Party B start from ab, which is 36 kilometers apart, and go in opposite directions. When Party A departs from A to 1 km, it has been in A until it finds something and returns immediately. When he left, he immediately went from A to B, and let Party A and Party B meet at the end points of A and B. He knew that Party A walked 0.5 kilometers more than Party B every hour, and wanted both.
29. Two trains run in opposite directions from two places 400 kilometers apart at the same time. The bus speed is 60 kilometers per hour, and the truck speed is 40 kilometers per hour. Do the two trains meet at 100 km after several hours?
30. A travels 9 kilometers per hour and B travels 7 kilometers per hour. They walked back to back at the same time in two places 6 kilometers apart, and a few hours later they were separated by 150 kilometers.
3 1. Two cars A and B are driving in opposite directions from two places 600 kilometers apart at the same time. It is known that car A travels 42 kilometers per hour and car B travels 58 kilometers per hour. How many kilometers did B car travel when they met?
32. The two cars are facing each other. They meet in six hours. Four hours later, the bus arrives. The truck 188 km. How far is the distance between the two places?
33. The distance between Party A and Party B is 600 kilometers. The bus and truck travel in opposite directions from the two places and meet after 6 hours. As we all know, the speed of a truck is two-thirds that of a bus. What is the speed of the two cars?
34. The rabbit and the kitten walked in opposite directions from A and B, which are 40 kilometers apart respectively. Four hours later, they were four kilometers apart. How long did it take to meet?
35. Two cars, A and B, leave from A and B respectively. Car A travels 50 kilometers per hour and car B travels 40 kilometers per hour. What's the distance between the two places 1 hour before the bus B?
36. Two cars leave from Party A and Party B at the same time and meet at 4 o'clock. The speed of the local train is three-fifths of that of the express train. When we met, the express train traveled 80 kilometers more than the local train. How far is the distance between the two places?
37. Party A and Party B set out from A and B at the same time and walked towards each other. Party A walks 65,438+000 meters per minute, and Party B walks 65,438+020 meters per minute. After two hours, the distance between them is150m. What is the shortest distance between a and b? What is the longest distance?
38. The distance between Party A and Party B is 180km. It was planned that a car would travel from A to B for 4 hours, but it actually traveled 5 kilometers per hour more than originally planned, so it arrived several hours earlier than originally planned.
39. Two cars A and B leave relatively from AB at the same time. When they met, the distance they walked was 4: 3. After the meeting, B was faster than A by12km per hour, and A still kept the original speed. As a result, the two cars arrived at the destination at the same time. It is known that B traveled 12 hours. How many kilometers is it between AB and China?
40. Two cars A and B are driving in opposite directions from two places 325 kilometers apart at the same time. Car A travels 52 kilometers per hour, and the speed of car B is 1.5 times that of car A. When will the cars meet?
4 1, two cars, A and B, start from A and B at the same time and drive in opposite directions. A travels 80 kilometers per hour, and B travels 10% of the whole journey per hour. When B travels to 5/8 of the whole journey, A can reach B through 65438+ 0/6 of the whole journey. How many kilometers is it between A and B?
42. Two cars, A and B, leave two places at the same time. Car A travels 40 kilometers per hour and car B travels 45 kilometers per hour. When the two cars meet, the second car is 20 kilometers away from the midpoint. How many kilometers are the two places apart?
43. Party A and Party B walk in opposite directions in two places at the same time, and meet at E. Party A continues to walk at B. Party B takes a rest 14 minutes, and then continues to walk at A. Party A and Party B turn back immediately after arriving at B and A respectively, and still meet at E. Know that A walks 60 meters per minute, B walks 80 meters per minute, and how many meters are there between A and B.
44. Two trains, A and B, leave from AB relatively simultaneously. When they meet, the distance ratio between A and B is 4: 5. It is known that the speed of the second train is 72 kilometers per hour, and the complete journey of a train takes 10 hour. How many kilometers are there between AB and AB?
45. Party A and Party B walk from A and B to each other at the speed of 4 kilometers and 5 kilometers per hour respectively. After meeting, they went on walking. How many kilometers is there between A and B if A walks from the assembly point for another two hours and arrives at B?
46. Passenger cars and trucks depart from Party A and Party B relatively simultaneously. After meeting on the way, they moved on. They returned immediately after they arrived at each other's departure place. They met for the second time on the road. The distance between the two venues is120km. The bus travels 60 kilometers per hour and the truck travels 48 kilometers per hour. How many kilometers is the distance between Party A and Party B?
47. A bus and a truck set off from A and B at the same time and met for five hours. After the rendezvous, the two cars continued to drive forward for three hours. At this time, the bus distance b is180km, the truck distance a is 2 10/0km, and how many kilometers is AB?
48. Party A and Party B started from AB, and the speed of Party A was 4/5 of that of Party B. After arriving at Party B and Party A, Party A returned to AB, and the speed of Party A increased by 1/4, and that of Party B increased by 1/3. It is known that the two meeting points of A and B are 34 kilometers apart. How to find the distance between AB?
Xiao Ming got up at five o'clock and looked at the clock. The word 6 is right in the middle of the hour hand and the minute hand (that is, the distance from the two hands to 6 is equal). What time is five o'clock?
50. A cruise ship is sailing on the Yangtze River. It takes 3 hours to sail from Port A to Port B, and 4 hours and 30 minutes to return. How many hours does it take for an empty bucket to drift the same distance only by the current?
5 1. Lily and her family went to the bookstore to buy books and fell in love with a book at the same time. Finally, Lily bought one each with three-fifths of her own money and two-thirds of her family's money, and the remaining money of Lily was five yuan more than that of her family. How much money do they each have? How much are these books?
52. A car consumes 4/5 kilograms of fuel per line for 8 kilometers. How many kilometers is it feasible per kilogram of gasoline on average? How many kilograms does driving 1 km consume?
53. A motorcycle1/travels 30 kilometers in 2 hours. How many kilometers does it travel per hour? How many hours does it take him to drive 1 km?
Among the students reading in the reading room, four out of seven are boys. After five male students walked out of the reading room, twelve of the twenty-three were female students. How many students were reading in the original reading room?
55. There are 62 red, yellow and blue balloons, of which three-fifths of the red balloons are equal to two-thirds of the yellow balloons, and there are 24 blue balloons. How many are Red Balloon and Yellow Balloon?
There are 36 students reading books in the school reading room, 4/9 of whom are female students. Later, several female students came. At this time, the number of female students accounts for 3/5 of the readers. Later, several female students came.
57. After water freezes, its volume is higher than the original expansion 1 1/0. 2./kloc-what is the volume of 0/6 cubic meter of ice after melting into water?
58. Party A's grain is 560 tons. If two-ninth of Party A's grain is shipped to Party B, Party A's grain is exactly the same. How many tons of grain does Party A have? How many tons of grain does B have?
59. The price reduction of TV sets in 200 yuan is 2/ 1 1. What's the price of this TV set now?
60。 Car A has traveled more than 2/5 kilometers from A to B.. At this time, there are still 70 kilometers from B. How many kilometers are there between A and B?
6 1. Xiaoming reads a book. On the first day, he read 28 pages. The next day, he read the whole book 1/5 (1). In two days, * * * read 3/8 (8/3) of the whole book. How many pages does this book have?
62. Both the master and the apprentice are processing a batch of parts. After a period of processing, the master processed 84 parts. The apprentice made 63 parts. The master worked harder than the apprentice 1/28. How many parts are there in this batch?
63. A barrel of oil, after eating 7/ 10, added 15 kg. At this time, the oil in the barrel is exactly half of that in a barrel. How much does this barrel of oil weigh?
64. A train from Shanghai to Tianjin takes up 3/5 of the whole journey. If you drive at 106 km/h, you can reach Tianjin in five hours. How long is the railway from Shanghai to Tianjin?
65. In the sixth grade, 46 students participated in math interest groups, of which 4/5 were girls and 3/2 were boys. How many boys and girls joined the interest group?
66. It takes Zhang Hong five hours to copy a manuscript. This manuscript has been copied by others 1/3, and the rest will be copied by Zhang Hong. How many hours does it take to copy it?
67. Two trains leave from two cities 600 kilometers apart at the same time. One train runs at 60 kilometers per hour, and the other train runs at 75 kilometers per hour. How many hours will the two trains meet?
68. A motorcycle travels 64 kilometers per hour. It takes 3/4 hours to get from a to b at this speed. What is the distance between a and b?
69. The fruit shop sold a batch of fruits in two days. On the first day, 3/5 of the total fruit weight was sold, 30 kilograms more than the next day. How many kilograms are there in this batch of fruit?
70. Jessie Primary School has 9 10 students, seven quarters of whom are girls. How many are girls? How many boys are there?
7 1. A rectangular piece of land, 60 meters long and 2/5 wide. What is the area of this land?
72. The ratio of red goldfish to black goldfish in the goldfish pond is 7:3. There are 9 black goldfish. How many red goldfish are there?
Grade 73.6 students 132, in which the ratio of male to female students is 6: 5. How many boys and girls are there in the sixth grade?
74. The ratio of A to B is 2:3, and that of B to C is 4:5. Find the ratio of a to C.
75. The number of trees planted in Jiefang Road Primary School this year is 65438+ 0.2 times that of last year. Write down the ratio between the number of trees planted in this primary school this year and the number of trees planted last year.
76. Last year, the ratio of the output of color TV sets to the total output of TV sets in a TV factory was 9/20. Last year, * * * produced 250,000 TV sets, including how many color TV sets?
77. Workers in a factory account for two-thirds of the total number of employees in the factory, technicians account for two-ninth of the total number of employees in the factory, and the rest are cadres. Write down the proportion of workers, technicians and cadres in this factory.
The number of students in a class is between 40 and 50, and the ratio of male to female is 5:6.
How many boys and girls are there in this class? ..
79. The ratio of science and technology books to literature and art books in the library is 4: 5. After purchasing 300 works of art, the ratio of science and technology books to literature and art books is 5: 7. What percentage of literature and art books have increased?
80.100g sugar water just fills a glass, including10g sugar. Pour out10g sugar water from the cup, and then fill the cup with water. What's the ratio of sugar to water in the quilt?
8 1. There are only 175 students in grades 5 and 6. Divide into three groups to participate in the activities. The ratio of the first group to the second group is 5: 4, and the third group has 67 people. How many people are there in the first and second groups?
82. There are 465 students in a school, of whom 2/3 are girls and 20 are less than 4/5 boys. How much is the male and female?
83. For a manuscript, 1 7 of the whole manuscript is typed on the first day and 2/5 on the second day. The next day was nine pages more than the first day. This manuscript