Average marks in English of a class of 24 students is 56 . If Marks of three students were misread a

English

Gujarati

Hindi

4.Average

medium

The average marks in English of a class of $24$ students is $56 .$ If the Marks of three students were misread as $44,45$ and $61$ in lieu of the actual marks $48,59$ and $67$ respectively, then what would be the correct average ?

A

$56.5$

B

$59$

C

$57.5$

D

$57$

Solution

Total marks $=24 \times 56=1344$

Total of actual marks

$=1344-(44+45+61)+(48+59+67)=1368$

Actual average $=\frac{1368}{24}=57$

Standard 13

Quantitative Aptitude

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