If the average of 4 numbers is 8, their sum is 4×=32 . The sum of the two numbers which were removed is 42−32=10 . 六个数字的平均值为7.如果六个数字中的两个数字被删除,则剩余数字的平均值为8.被删除的两个数字的总和是多少?. (使用原理n个数的总和n乘n数的平均值.)如果6的平均值...
The average of 8 numbers is 15. After adding a new number, the average becomes 16. What is the new number? A. 24 B. 23 C. 22 D. 21 相关知识点: 试题来源: 解析 A。8 个数的总和为 120,加入一个新数后平均变为 16,此时总和为 16×9 = 144,新数为 144 - 120 = 24。
1In a sequence of 10 numbers, the average of the 10 terms is 13. If the average of the first three terms is 7 and the average of the next four terms is 10, what is the average of the last three terms?A.20B.21C.22D.23 2In a sequence of 8 numbers, the average of the 8 te...
Suppose that the first number is increased by 1, the second number is increased by 2, and the third number is increased by 3, The average of the three numbers has been increased by (1+2+3)÷3=6÷3=2. 三个数的平均数是20,假设第一个数加1,第二个数加2,第三个数加3,则这三个数...
百度试题 结果1 题目The average of five numbers is . If one of the five numbers is removed, the average of the four remaining numbers is .What is the value of the number that was removed. 相关知识点: 试题来源: 解析反馈 收藏
百度试题 结果1 题目 (1)单句改错②The average of these numbers are 50. 相关知识点: 试题来源: 解析②are→1s 反馈 收藏
If the average of five numbers is 20, and four of them are 15, 22, 18 and 25, then the fifth number is ___. A. 细平任如正产全半细平任如正产全半20细平任如正产全半细平任如正产全半 B. 条能条能25条能条能 C. 复反张清象车复反张清象车30复反张清象车复反张清象车 D. 果电...
The average of 5 numbers is 12. If one number is 15 and another is 10, what is the average of the remaining three numbers? A. 11 B. 12 C. 13 D. 14 相关知识点: 试题来源: 解析 A。本题先算出五个数总和为 60,已知两个数分别为 15 和 10,那么这两个数的和为 25,五个数总和减去...
结果1 题目 12. The average of five numbers is 13. When one of the numbers is changed to 7,the average of the five numbers becomes 12.2. What is the original number before it is changed to 7?1(1)3(2)7.8(3)11(4)19.6 相关知识点: 试题来源: 解析 反馈 收藏 ...
区别 4: 语境偏好"an average of"：在大多数情况下，用于描述一组数据的平均值，比较常见。例子1: The data shows an average of 50 attendees at each event. (数据显示每次活动平均有50名参与者。)例子2: He calculated an average of 10 errors per page in the manuscript. (他计算了手稿中...