Five people were asked about the time in a week they spend in doing social work in their community they said 7,10,13,20,15 hours respectively. which methametical concept is used in this question??

what value is depicted in this question?? answer me fast please...​

Mean time and 13

Step-by-step explanation:

Since in the given question it is mentioned that there is a five people and they spend the work in 7,10,13,20,15 hours respectively

So here the concept i.e. used is average time or the mean time

And, this can be calculated below:

= Sum of observations ÷ number of observations

= (7 + 10 + 13 + 20 + 15) ÷ 5

= 13

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.