The average weight of a class of 24 students is 30kg. When the weight of the teacher is also included, the average weight increases by Tkg.
What is the weight of the teacher?
Answers
Given,
There are 24students in the class.
Their average weight is 30kg.
To Find,
The class teacher's weight.
Solution,
Given that,
24 students are in the class.
The mean weight of the twenty-four students is 30kg.
When the teacher's weight is also added then the average weight
30+Tkg.
The total weight of the students = 24*30
W1 =720kg.
When the teacher also came then the total weight=
25 * (30+T) = 750+ 25T
To find the teacher's weight =
750+25T - 720 = 30+25T.
Hence, the weight of the teacher in the class is 30+25T.
Answer:
Step-by-step explanation:
Given,
No. of students in the class = 24
average weight = 30kg.
Find:
The class teacher's weight.
Solution,
Given that,
24 students are in the class.
The mean weight of the twenty-four students is 30kg.
When the teacher's weight is also added then the average weight
30+(y)kg.
The total weight of the students = 24*30
W1 =720kg.
When the teacher also came then the total weight=
25 * (30+y) = 750+ 25y
To find the teacher's weight =
750+25y - 720 = 30+25Ty
Hence, the weight of the teacher in the class is 30+25Ty
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