# Final exam

At the final exam, the student answers from three areas, which are evaluated in a ratio of 1: 2: 2. What grade will John receive if he answered as follows: 3,1,2.

Correct result:

x =  2

#### Solution:

$x_{0}=3 \cdot \ \dfrac{ 1 }{ 1+2+2 } +1 \cdot \ \dfrac{ 2 }{ 1+2+2 } +2 \cdot \ \dfrac{ 2 }{ 1+2+2 }=\dfrac{ 9 }{ 5 }=1.8 \ \\ \ \\ x=[ { x_{0} } ]=[ { 1.8 } ]=2$

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