Dan takes a test worth 100 points. Each question is worth the same number of points. Dan misses 5 questions and scores 80 on the
test. How many points is each question worth?
2 answers:
<span>each question is worth 4 points because if he missed 5 questions and 5*4 is 20 and 20 minus 100 is 80
</span>
(x-5)/x * 100 = 80
(x-5) * 100 = 80x
100x - 500 = 80x
20x = 500
x =25 questions
(100 / 25) = 4 points per question
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