SOLUTION: In a game for 24 groups, the average number of children in a group was 16. When one more group of children joined the game, the average number of children became 18. How many stude

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Question 1122049: In a game for 24 groups, the average number of children in a group was 16. When one more group of children joined the game, the average number of children became 18. How many students were there in the new group?
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.
%2824%2A16+%2B+x%29%2F25 = 18.


Solve for x, which is the number under the question.


x = 18*25 - 24*16 = 66.


Answer.  66 children in the new group.

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