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Answer :
Final answer:
The calculation of the correctly answered questions shows a fraction of 15/20. After reducing to simplest form, we get a fraction of 3/4. Thus, option A is correct.
Explanation:
The student's question pertains to simplifying fractions in mathematics. Marco correctly answered 15 out of the 20 questions. To find the fraction of the questions he answered correctly, we'll simply place the number Marco got right (15) over the total number of questions (20). Therefore, Marco's fraction of correctly answered questions is 15/20. Although the question provided a list of options, it always helps to simplify fractions to their lowest terms. So, let's simplify our fraction: 15 and 20 are both divisible by 5, so if we divide both parts of the fraction by 5, we get 3/4. Therefore, the correct answer from the list provided would be A. 3/4.
To find the fraction of questions that Marco answered correctly, we can divide the number of questions he answered correctly by the total number of questions.
Fraction of questions answered correctly = 15 / 20 = 3 / 4
Therefore, the answer is (A).
We can also check our answer by converting the fraction to a percentage.
3 / 4 * 100% = 75%
Therefore, Marco answered 75% of the questions correctly.
Learn more about Fraction Simplification here:
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