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Question 729992: There ar children and adults at an art exhibit. There are 15 children, and this is 12% of the total number of people at the exbibit. How many adults are at the exhibit?
F. 80
G. 110
H. 125
I. 180
Found 4 solutions by lynnlo, ikleyn, timofer, MathTherapy:
Answer by lynnlo(4176)   (Show Source):
Answer by ikleyn(53427)  (Show Source):
You can put this solution on YOUR website! .
There are children and adults at an art exhibit.
There are 15 children, and this is 12% of the total number of people at the exbibit.
How many adults are at the exhibit?
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Let x be the total number of people at the exhibit.
Then the problem says
0.12x = 15.
It gives
x = 15/0.12 = 125.
Then the number of adults was 125 - 15 = 110. ANSWER
The answer is option (G).
Solved.
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Ignore the post by @lynnlo, since it is incorrect.
Answer by timofer(136) (Show Source):
Answer by MathTherapy(10587)  (Show Source):
You can put this solution on YOUR website!
There ar children and adults at an art exhibit. There are 15 children, and this is 12% of the total number of people at the exbibit.
How many adults are at the exhibit?
F. 80
G. 110
H. 125
I. 180
Since 15 children represent 12% of the people at the exhibit, then number of adults represent 100% - 12% (1 - .12) = 88%, or .88
With A being the number of adults, we then get the following PROPORTION: 
.12A = 15(.88) ----- Cross-multiplying
Number of adults, or 
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