Question

in a class average of 'a' pupils is x, average of'b' pupils is y,and average remaining 'c' pulis is z ,then the of the entire class is
A. ax+by+cz/a+b+c
B. ax+by+cz/3
C. (ac+by+cz)3
D. abc/3​

Answer 1

Answer:

(ax + by + cz)3

Step-by-step explanation:

multiply the name the category of pupils with the nimber of pupil and divide it by 3 as there are three divisions.