Asked by kareen

There are 5 students in a classroom. The median age of the children are 9. Two of the children ages are 5. The range of all the students are 7. What is the age of the second to the last child?

5, 5, 9, ? , 12

Is the answer 12?
May you please give an explanation to this problem.

Answered by Ms. Sue
Why couldn't the age be 10 or 11, as well as 12?

Answered by kareen
Are you saying I could write any number there. My thinking is that the range of all the children is 7 therefore the 5th child would be 12. I am completely lost and have no idea the solution here!!!!
Answered by Ms. Sue
The last child must be 12. So the second to last child is 9, 10, 11, or 12.

Did the problem give you the average of their ages?
Answered by kareen
No it did not give an average. This makes sense. Thank you. If it did give an average. The answer would then be

5+5+9+x+12

27+ x/5 = ?
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