the weight of the 15 students are given find the average weight of the students
weights=40,42,45,50
studends=3,5,6,1
Answers
The average of weight of the students is 30 unit.
Explanation:
The average weight of 3 students is 40 unit
∴ The total weight of 3 students = (40× 3) unit
= 120 unit
The average weight of 5 students is 42 unit.
∴ The total weight of 5 students = (42×5) unit
= 210 unit
The average weight of 6 students is 45 unit.
∴ The total weight of 6 students = (45×6) unit
= 270 unit
The weight of the remaining 1 student is 50 unit.
∴ The total weight of 15 students is = (120+210+270+50) unit
= 450 unit
∴ The average weight of 15 students = (450/15) unit
= 30 unit.
∴ The average weight of 15 students is 30 unit.
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