Advertisements
Advertisements
Question
The mean weight of 4 members of a family is 60 kg. Three of them have the weight 56 kg, 68 kg and 72 kg respectively. Find the weight of the fourth member
Advertisements
Solution
Weight of 4 members = 4 × 60 kg
= 240 kg
Weight of three members = 56 kg + 68 kg + 72 kg
= 196 kg
Weight of the fourth member = 240 kg – 196 kg
= 44 kg
APPEARS IN
RELATED QUESTIONS
The data 6, 4, 3, 8, 9, 12, 13, 9 has mean 9.
Solve any two of the following.
In some families in a colony the daily purchase of milk in litre is 1, 3, 2, 2, 4, 1, 2, 2, 1. Find the mean, median and mode of daily purchase of milk.
The calculated mean of 50 observations was 80. It was later discovered that observation 19 was recorded by mistake as 91. What was the correct mean?
The mean of five numbers is 50, out of which mean of 4 numbers is 46, find the 5th number:
Mean of 100 observations is 40. The 9th observation is 30. If this is replaced by 70 keeping all other observations same, find the new mean.
Two vessels contain 20 liters and 60 liters of milk respectively. What is the amount that each vessel would have if both share the milk equally?
The mean of a, b, c, d and e is 28. If the mean of a, c and e is 24, then mean of b and d is
The mean of first ten natural numbers is ____________
_______________ is a representative value of the entire data
The mean of first fifteen even numbers is ____________
