Driving school

Driving final exam involving 14 attendants. The exam consists of three parts. 4 fails the test (quiz), and 7 students fail on car skills test on the playground (slalom between the cone). The practical part of the test - driving in town in real traffic - all passed.

What is the total percentage of students with succeed in the examination?

Final Answer:

p =  21.43 %

Step-by-step explanation:

$$\begin{gathered} r=\frac{14-4-7}{14}=\frac{3}{14}\doteq 0.2143 \\ p=100\cdot r=100\cdot 0.2143=21.43\% \end{gathered}$$

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