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den301095 [7]
3 years ago
5

a student has answered 82% of the questions correctly in the examination. He made mistakes in 9 questions Calculate the toltal n

umber of questions in the examination​
Mathematics
1 answer:
Sonja [21]3 years ago
5 0

Answer:

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:

18\%x=9 (Given that the student made 9 mistakes)

x=9\div18\% (divide 18% on both sides)

x=50

∴ There was a total of 50 questions in the examination.

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