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The average of marks in Mathematics for 5 students was found to do 50. Later, it was discovered that in the case of one student the marks 48 were misread as 84. The correct average is :
Answer & Solution
Correct Answer:
Option
C
According to the question,
Correct average
$$\eqalign{ & = \frac{{5 \times 50 + 48 - 84}}{5} \cr & = \frac{{250 - 36}}{5} \cr & = \frac{{214}}{5} \cr} $$
= 42.8
Correct average
$$\eqalign{ & = \frac{{5 \times 50 + 48 - 84}}{5} \cr & = \frac{{250 - 36}}{5} \cr & = \frac{{214}}{5} \cr} $$
= 42.8
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