Question

the mean weight of students of a class is 45 Kg if the total weight of all the students is 1890kg find the number students in the class ​

Answer 1

Answer:

let the total number of students be x. Follow me...

Average = sum of the observations/ total number of observation

So here, Average= total weight of all the students/ total number of students

45= 1890/x

45 x = 1890

x = 1890/45

x= 42 students

Therefore, number of students in the class is 42. pls follow me......