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Bt758
22.11.2020 •
Mathematics
a student has answered 82% of the questions correctly in the examination. He made mistakes in 9 questions Calculate the toltal number of questions in the examination
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Ответ:
There is a total 50 questions.
Step-by-step explanation:
Let x = total questions in the exam
Since 82% of the test was scored correctly, that means 18% of the student's exam was scored incorrectly.
With this information we can write:
∴ There was a total of 50 questions in the examination.
Ответ:
Why would you say that in a school app? Just asking-