There Are Two Divisions A And B Of A Class, Consisting Of 36 And 44 S

1.	There Are Two Divisions A And B Of A Class, Consisting Of 36 And 44 Students Respectively. If The Average Weight Of Divisions A Is 40 Kg And That Of Division B Is 35 Kg. What Is The Average Weight Of The Whole Class?
Answer» Total weight of STUDENTS in division A = 36 × 40 Total weight of students in division B = 44 × 35 Total students = 36 + 44 = 80 Average weight of the WHOLE CLASS =(36×40)+(44×35)/80 =(9×40)+(11×35)/20 =(9×8)+(11×7)/4 =72+77/4 =149/4 =37.25. Total weight of students in division A = 36 × 40 Total weight of students in division B = 44 × 35 Total students = 36 + 44 = 80 Average weight of the whole class =(36×40)+(44×35)/80 =(9×40)+(11×35)/20 =(9×8)+(11×7)/4 =72+77/4 =149/4 =37.25.

There Are Two Divisions A And B Of A Class, Consisting Of 36 And 44 Students Respectively. If The Average Weight Of Divisions A Is 40 Kg And That Of Division B Is 35 Kg. What Is The Average Weight Of The Whole Class?

Answer»

Total weight of STUDENTS in division A = 36 × 40

Total weight of students in division B = 44 × 35

Total students = 36 + 44 = 80

Average weight of the WHOLE CLASS

=(36×40)+(44×35)/80

=(9×40)+(11×35)/20

=(9×8)+(11×7)/4

=72+77/4

=149/4

=37.25.

Total weight of students in division A = 36 × 40