There are 25 students. Average number of siblings for each student is 3. A new student with 8 siblings joins the class. The average number of siblings that each student has is?

Question

Mathematics

Philip Haney

4 March, 23:35

There are 25 students. Average number of siblings for each student is 3. A new student with 8 siblings joins the class. The average number of siblings that each student has is?

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Answers (1)

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Ruth Burgess · Answer 1

3.19

To find average you add then divide by how many.

So, we can reverse because? divided by 25 = 3 75 would be the mystery number because of the equation above. If you add 8 to 75 then divide by 26 (new student) you get 3.19230769