Math topic中文

Applying charts and the mean

Apply statistical charts and the mean appropriately in simple real-world contexts.

Practice questions

  1. 1数学考试甲、乙两名同学的平均分是88分，甲、丙两名同学的平均分是90，乙、丙两名同学的平均分是92，他们三人的平均分是多少分？
  2. 2刘华参加演讲比赛，77个评委的打分分别是：9191分、8888分、8484分、8989分、9292分、9898分、8585分。如果去掉一个最高分和一个最低分，刘华的平均得分是多少分？
  3. 3A group of workers was asked to vote for their favourite food, carrot cake, mee siam and nasi lemak. The pie chart shows…
  4. 4Danny's scores for 5 games are shown in the table below. | Game | 1st | 2nd | 3rd | 4th | 5th | | :--- | :---: | :---: |…
  5. 5A group of students had an average of $10. Three students with a sum of $57 joined the group and the average amount of…
  6. 6小华三次口算分别算对了1919题、1212题、1717题．平均每次算对了 ___ 题．
  7. 7The average mass of Bags W and X is 25 kg. The average mass of Bag X and Bag Y is 30 kg. The average mass of Bag Y and B…
  8. 8The bar graph shows the number of files sold from March to July. In which of the following months was the percentage cha…
  9. 9The bar graph below shows the number of members in a fitness club from 2018 to 2022. Study the graph and answer question…
  10. 10李明期末测试数学、语文、英语三科的平均成绩是96分，其中数学98分，语文92分，英语___分．
  11. 11The table below shows the favourite subject of the students in Primary 6C. It is used to draw the pie chart shown. Mathe…
  12. 12The sum of 6 numbers is 70. The average of 4 of the numbers is 12. What is the sum of the remaining numbers?
  13. 13The bar graph shows the number of cakes baked by a bakery over four months. The number of cakes baked is not shown on th…
  14. 14The table below shows the mark Chelsie scored for 3 tests. What is the average mark she scored for these 3 tests? | Test…
  15. 15The table below shows numbers from 1 to 56. Kai and Ray are given a plastic frame that covers exactly 9 squares of the t…
  16. 16The average of 6 numbers is 14. When a 7th7^{\text{th}} number is added, the average becomes 16. What is the 7th7^{\text{th}}…
  17. 17Alice was given the same amount of pocket money every day. The line graph shows the amount of money she had left at the…
  18. 18The bar graph shows the number of students in the four CCAs, Brownies, Scouts, Volleyball and Basketball. The number of…
  19. 19四(1)班共有4040名学生，期中检测时有22名学生缺考，当时班级英语均分7979分，后来这22名学生补考都得了9999分，那么现在的班级均分是多少？
  20. 20Lina had $800 in her wallet. She spent some money from January to May. The line graph shows the amount of money in her w…
  21. 21五（4）班第一小组的同学，5名男生平均身高是1.44米，3名女生的平均身高1.38米，这个小组男女生的平均身高是多少米？
  22. 22The pie chart below shows the favourite ball games of a group of students. Part of the data is also represented in the b…
  23. 23The bar graph below shows the number of printers sold by 4 shops in a month. What fraction of the total number of printe…
  24. 24刘佳数学第1，2次测验的平均成绩是90分，第三次测验后，三次的平均成绩是93分，第三次的成绩是 分．
  25. 25The bar graph below shows the number of cars sold from January to March. The number of cars sold in March is 14\tfrac{1}{4}…
  26. 267 men donated a total of $1435. What is the average amount donated by each man? Ans: $ ___
  27. 27Uncle Lim has 4 boxes of fruits, Box A, Box B, Box C and Box D. The bar graph below shows the number of fruits in each b…
  28. 28The table below shows the number of families with different number of children in a block of flats. There are 300 childr…
  29. 29The table shows the number of books read by 42 students. Two of the numbers in the table are accidentally painted over.…
  30. 30At the start of a 5-day sale, two shops A and B had 100 identical laptops each. The graphs below show the total number o…
  31. 31A player has to score an average of 18 points and above over 5 rounds of a game to qualify for the next level. | Round |…
  32. 32The average mass of a group of 3 boys is 38 kg. Hashim, whose mass is 42 kg, joined the group. What is the average mass…
  33. 33The pie chart shows what a group of children has chosen as their favourite colour. The same information is shown in a ba…
  34. 34The table shows the number of seashells collected by 3 boys. Express the total number of seashells the 3 boys have in te…
  35. 35The pie chart below shows the amount of pasta sold from Monday to Thursday. The ratio of the amount of pasta sold on Wed…
  36. 36The graph shows the number of toys sold by a shop from March to June. In which 1-month interval was the percentage incre…
  37. 37There are 30 boys and girls in a group. The average height of the children is 145 cm. When 3 more boys joined the group,…
  38. 38Simon, Marc and Wilson sat for their Math exam. The average score of Simon and Marc was 85 marks. The average score of M…
  39. 39The pie chart and bar graph show the number of different types of flowers sold in a particular week. The number of flowe…
  40. 40The table below shows the number of bicycles sold each month by a shop. | Month | Number of bicycles sold | |---|---| |…
  41. 41The average of two different 3-digit numbers is 104. Write down one possible set of values for the two numbers. Ans: ___…
  42. 42The table below shows the range of marks scored by a group of 220 students in a competition. | Marks | Number of student…
  43. 43During a game, Eng Soon, Fauzi and Harish scored an average of 68.5 points. Gary joined the game and the average score o…
  44. 44The graph shows the number of laptops sold from July to September last year. The total number of laptops sold in August…
  45. 45要清楚的表示出学生一周的体温变化情况，用()(\quad)比较合适。 A. 扇形统计图 B. 折线统计图BB C. 条形统计图
  46. 46The average of 4 numbers is 34. The sum of the first 3 numbers is 108. What is the fourth number?
  47. 47Tom wanted to buy a new television and started a 4-month savings plan. The line graph shows the total amount of savings…
  48. 48The table shows the number of points scored by different groups of students in a quiz. | Number of points scored | 0 | 1…
  49. 49前55分钟写8080个字，后33分钟写5454个字，平均每分钟写字(80+54)÷2=67((80+54)÷2=67(个).). ___ . (.\:(判断对错))
  50. 50In a class of 42 children, the average mass of the children was 37.5 kg. The average mass of the girls in the class was…
  51. 51On Saturday, Mr Zusin sold five different types of items. He prepared 66 of each item at the start of Saturday. He sold…
  52. 52The graph below shows the mass of a cup when empty and when different combinations of objects A, B and C are placed in t…
  53. 53巧求平均数 林老师给大家出了一道题：前进小学8个班去帮助农民摘豆角，每个班摘豆角的重量分别是55kg，50kg，48kg，54kg，49kg，53kg，54kg，53kg．平均每班摘豆角多少千克？ “看谁算得准！”林老师鼓励说． 于伟很快回…
  54. 54The bar graph below shows the number of cups of ice-cream sold at a stall. What percentage of the cups of ice-cream sold…
  55. 55The average score for a Mathematics test in a class of students was 80. Later, it was discovered that the score of one s…
  56. 56X, Y and Z are 2-digit numbers. The average of X, Y and Z is 56. X is 23\frac{2}{3} of Y. Find the smallest possible val…
  57. 57The picture graph shows the number of bags that were sold by a shop from Monday to Thursday. What was the average number…
  58. 58The table below shows the number of pupils with the following Math scores. | Math scores | 85 | 88 | 90 | 91 | 95 | 98 |…
  59. 59A company offered 150 laptops at a 20% discount during a 5-day sale. The line graph shows the number of laptops left uns…
  60. 60The table shows the mode of transport taken by a group of pupils to school. Which mode of transport is taken by the grea…