Question

The average age of 10 boys in a class is 13 years.What is sum of their ages? plz in detail​

Answer 1

Answer:

130

Step-by-step explanation:

avg=sum of all ages / no. of boys

13=sum/10

sum=13×10=130

Answer 2

Answer:

sum of their ages is 130

Step-by-step explanation:

average=sum of observations/total number of observations

let the sum be x then

x/10=13

x=13×10

x=130

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