1.

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?​

Answer»

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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