SOLUTION: Please help with the following problem: The score S on a Math 012 test varies directly as the number of correct responses N. Jules answers 29 questions correctly and earns a score

Question 1093760: Please help with the following problem:
The score S on a Math 012 test varies directly as the number of correct responses N. Jules answers 29 questions correctly and earns a score of 87. What would Jules� score have been if he had answered 25 questions correctly.
THANK YOU!
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Please help with the following problem:
The score S on a Math 012 test varies directly as the number of correct responses N. Jules answers 29 questions correctly and earns a score of 87. What would Jules� score have been if he had answered 25 questions correctly.
THANK YOU!

As this involves DIRECT VARIATION, you can set up the problem as a proportion.
With S being his score when he answers 25 questions correctly, we get: 

OR

With a score of 87 and having gotten 29 correct, it follows that each question is worth , or 3 points.
As each question is worth 3 points, his score, if 25 are correct will be:

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