The average wight of 20 boys in a class is 160 kg and that of the remaining 5 boy is 50 kg find the average wight of all boys in the class
Answers
Answered by
1
Answer:
Average weight of all boys in class are 8.4 kg or 8 kg 400 gram
Step-by-step explanation:
20+5= 25 boys weight is (160+50)= 210 kg
average weight is = 210÷25= 8.4 kg
Answered by
0
Answer:
See a solution process below:
Explanation:
The formula for finding an average is:
A=Sum of All Values/
Total Number of Values
The total weight of the boys in the class is:
5×40kg
=200kg
The total weight of the girls in the class is:
35×50kg
=1750kg
The total weight of everyone in the class or the
Sum of All Values
is:
200kg+1750kg
=1950kg
The
Total Number of Values
is:
5boys+35girls
=40
Substituting and calculating the average weight of the entire class gives:
A=1950kg
40
=48.75kg
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