SOLUTION: A student scored 78 on a test that had 4 seven-point fill-ins and 24 three-point multiple-choice questions. The student had one fill-in wrong. How many multiple-choice questions di

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Question 368326: A student scored 78 on a test that had 4 seven-point fill-ins and 24 three-point multiple-choice questions. The student had one fill-in wrong. How many multiple-choice questions did the student answer correctly?
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi,

4 seven-point fill-ins and 24 three-point multiple-choice questions

4*7 + 24*3 = 100 points total

78% correct or 78 points scored

Let x be the number of multiple choice correct

3*7 + 3*x = 78

3x = 57

x = 19 multiple choice correct