Question 14

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

Solution

Given,

Sum of the marks misread = 44+45+61 = 150

Actual marks of the students = 48, 59 and 67

Actual marks sum = 48+59+67 = 174

Difference = 174-150 = 24

Cporrect average = 56+$$\ \frac{\ 24}{24}$$

= 57

D is the correct answer.

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