Question
a test has 20 questions. I need to get atleast a 70% to pass, how many questions do I need to get right?
Answers
GPT-4o mini
To calculate the number of questions you need to get right to achieve at least a 70% score on a test with 20 questions, you can use the following formula:
\[
\text{Minimum correct answers} = \text{Total questions} \times \text{Passing percentage}
\]
Here, the total number of questions is 20, and the passing percentage is 70% (or 0.7 in decimal form).
\[
\text{Minimum correct answers} = 20 \times 0.7 = 14
\]
Therefore, you need to get at least **14 questions right** to pass the test.
\[
\text{Minimum correct answers} = \text{Total questions} \times \text{Passing percentage}
\]
Here, the total number of questions is 20, and the passing percentage is 70% (or 0.7 in decimal form).
\[
\text{Minimum correct answers} = 20 \times 0.7 = 14
\]
Therefore, you need to get at least **14 questions right** to pass the test.