The average weight of a class of 24 students

Asked by admin @ 16/08/2021 in Math viewed by 424 People

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?

Answered by admin @ 16/08/2021

Step-by-step explanation:

X/24 = 30, average of class students weight

X = 720

(720 + y) /25 = 31, average of class students and teacher weight

720 + y = 775

y = 775 - 720

y = 55

Weight of the teacher is 55kg

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