SOLUTION: A history exam has 100 multiple choice questions. A student gets 4 points for a correct answer, but loses 3 points for an incorrect answer. I answered all of the questions and scor

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Question 614394: A history exam has 100 multiple choice questions. A student gets 4 points for a correct answer, but loses 3 points for an incorrect answer. I answered all of the questions and scored a total or 225 points. How many did i answer correctly and many did i answer incorrectly?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, 

A student gets 4 points for a correct answer, but loses 3 points for an incorrect answer. 

A history exam with 100 multiple choice questions.

Let x and (100-x) represent the number right and wrong respectively

Question states***scored a total of 225 points

 4x -3(100-x) = 225

      x = 75, the number answered correctly, 25 answered incorrectly