Advertisements
Advertisements
प्रश्न
The mean monthly income of 8 men is Rs. 8079.75. A man whose monthly income is Rs. 8280 has also been taken into consideration. Calculate the mean monthly income of all the men.
Advertisements
उत्तर
Since mean monthly income of 8 men = Rs.8079.75
⇒ Sum of income of 8 men
= 8 x 8079.75
= Rs.64638
By considering one income of Rs.8280,
Total number of men = 9
Sum of income of 9 men of all men
= Rs. (64638 + 8280)
= Rs.72918
∴ Mean monthly income of all men
= `(72918)/(8)`
= Rs.8102.
APPEARS IN
संबंधित प्रश्न
Find the mean of 8, 12, 16, 22, 10 and 4. Find the resulting mean, if each of the observations, given above, be: decreased by 40%
The mean of 18, 24, 15, 2x + 1 and 12 is 21. Find the value of x.
The mean of 6 numbers is 42. If one number is excluded, the mean of the remaining number is 45. Find the excluded number.
For the set of numbers given below, find mean: 5, 7, 8, 4, 6
The weight of the seven members of a family, in kilograms are given below:
20, 52, 56, 72, 64, 13, 80.
Find mean weight.
A boy scored the following marks in various class tests during a terminal exam, each test being marked out of 20.
17, 15, 16, 7, 10, 14, 12, 19, 16, 12
Find his average mean marks.
The daily maximum relative humidity (in percent) in Mumbai from May 1 to May 7, 1992 is given below: 64, 70, 65, 80, 75, 78
Find the mean.
The mean of 16 natural numbers is 48. Find the resulting mean, if each of the number is decreased by 8
The mean of 16 natural numbers is 48. Find the resulting mean, if each of the number is divided by 0.25
A boy scored the following marks in various class tests during a term, each test being marked out of 20.
15, 17, 16, 7, 10, 12, 14, 16, 19, 12, 16
What is his mean marks?
