Question

The average weight of 20 students increased by 1 kg
when a new student joined the group. If the average
weight of the students initially was 55 kg, find the
weight of the student who joined the group.​

Answer 1

Step-by-step explanation:

Let there be n students in the class.

60n+64(8)=62(n+8)

62n−60n=64(8)−62(8)

2n=16

n=8

Therefore, initially there were 8 students in the class.

Answer 2

1155 kg is your answer

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