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Leona answered all the questions on a test. She had 90% of them correct. There were 40 questions in all. How many did she have correct?

[tex]\text{Explain with detail}[/tex]

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Answer:

The answer is 36

Step-by-step explanation:

Let the number be x

x/40 is her mark

she got 90% mark correct

x/40 x 100 = 90

by cancellation we get 9 x 4 = 36

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