Question

Average weight of 35 students in a class is 43 kg. A student, whose
weight is 46 kg is replaced by a new student. The average of all the students
still remains the 43 kg. What is the weight of the new student?​

Answer 1

Step-by-step explanation:

The students total weight is 40 kg x 35 = 1400 kg. Let t = teacher’s weight. So, (1400 kg + t) / 36 = 40.5

1400 + t = 1458 kg. t = 58 kg. Teacher weighs 58 kg.

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