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QYou got 70 questions on a test right

You got 70 questions on a test right. You received a score of 80%. How many total questions were on the test?


You scored an 80% on a test. The test had a total of 75 questions on it. How many questions did you get correct?


You took a test that had 60 questions on it. You got 20 questions wrong.

a what fraction of the questions did you get right?

b what percentage of the questions did you get right?


Thanks for your help
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#1Chrystal-JheanAnswered at 2013-03-17 10:04:46
1. let x = number of questions on test, so (70/x)*100 = 80 Rearranging gives x=(70/80)*100, x=87.5 which is odd, so i guess the answer is 87 questions, since 70 out of 87 is 80.4% 2. number of correct answers = y, so (y/75)*100 = 80 y= 60 3. you try this 4. you try these. Remember a percentage is a fraction...30% means 30/100 etc jon
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