Petra's test

The teacher will give a correct answer score of eight points, and the wrong answer will be deducted three points. The total score obtained by the school is 36 points. If Petra answered six questions correctly, how many questions were answered incorrectly by the student from the school?

Final Answer:

x =  4

Step-by-step explanation:

$$\begin{gathered} 8\cdot 6-3\cdot x=36 \\ 3x=12 \\ x=\frac{12}{3}=4 \\ x=4 \end{gathered}$$

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