Final exam

There are 5 learners in a class that has written a final exam Aleta scored 55% vera scored 36% and Sibusiso scored 88% if Thoko scored 71% and the class average was 63%. What was Davids score as a percentage?

Result

d =  65 %

Solution:

m=63  55+36+88+71+d5=63  d=5 63(55+36+88+71)=65=65%m=63 \ \\ \ \\ \dfrac{ 55+36+88+71+d }{ 5 }=63 \ \\ \ \\ d=5 \cdot \ 63-(55+36+88+71)=65=65 \%



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