Advertisements
Advertisements
प्रश्न
The mean of the data 12, x, 28 is 18. Find the value of x
पर्याय
18
16
14
22
Advertisements
उत्तर
14
Explanation
Hint:
`(12 + x + 28)/3` = 18
x + 40 = 54
x = 14
APPEARS IN
संबंधित प्रश्न
Find the mean of the first five whole numbers.
The data 6, 4, 3, 8, 9, 12, 13, 9 has mean 9.
Solve any two of the following.
Find the mean of the data given in the following table.
| Class | 0-20 | 20-40 | 40-60 | 60-80 | 80-100 |
| Frequency | 6 | 4 | 5 | 7 | 3 |
Ashish studies for 4 hours, 5 hours, and 3 hours respectively on three consecutive days. How many hours does he study daily on average?
The average of the marks 2, 9, 5, 4, 4, 8, 10 is ____________
The marks of 14 students in a science test out of 50 are given below. 34, 23, 10, 45, 44, 47, 35, 37, 41, 30, 28, 32, 45, 39 Find the minimum mark obtained
Arithmetic mean of 10 observations was found to be 22. If one more observation 44 was to be added to the data, what would be the new mean?
If the arithmetic mean of 8, 4, x, 6, 2, 7 is 5, then the value of x is ______.
The following are weights (in kg) of 12 people.
70, 62, 54, 57, 62, 84, 75, 59, 62, 65, 78, 60.
- Find the mean of the weights of the people.
- How many people weigh above the mean weight?
- Find the range of the given data.
In a class of 100 students there are 70 boys whose average marks in a subject are 75. If the average marks of the complete class is 72, then what is the average of the girls?
