AFCAT II 26 AUG 2022 Shift 1 Paper

No of the students in section A=40
No of the students in section B=44
The average weight of section A=35‌kg
Average weight of section B=37‌kg

Average =

Sum of Observations

Total number of Observations

Using the above formula, we get
Weight of Section A=40×35=1400
Weight of Section B=44×37=1628
Total weight =1400+1628=3028
Now, the average weight of the whole class
⇒ Average = Total weight ÷ Total number of students
⇒ Average =

3028

(40+44)

⇒ Average =36.04
∴ The average weight of the whole class is 36.04‌kg .