Posted by Patti on Monday, October 6, 2008 at 8:35pm.
I need help solving this math problem, please:
Problem:
Angela's math test had 100 multiplechoice questions. Each correct answer was worth 1 point, each incorrect answer was worth 2 points, and skipped questions were worth 0 points. Angela answered an even number of questions, was unable to complete the entire test, and did answer some questions incorrectly. Her test score was an 88. How many questions did she answer correctly? How many questions did she answer incorrectly?

math help  Reiny, Monday, October 6, 2008 at 8:48pm
let the number of correct be x
let the number of incorrect be y
then x  2y = 88
we know y>0, x<100, x+y < 100
how about y=1 then x = 90
y = 2 , then x = 92
y = 3 then x = 94
y = 4 then x = 96 but she missed some
so the three possible answers are:
90 correct, 1 incorrect
92 correct, 2 incorrect
94 correct, 3 incorrect
all your conditions are met.

math help  Patti, Monday, October 6, 2008 at 9:17pm
thank you!

math help  Reiny, Monday, October 6, 2008 at 9:18pm
small adjustment to my answer.
I just noticed it said, "she answered an even number of questions", I had read it as an even number of correct questions.
so the only possible answer is
92 correct, 2 incorrect
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