SSC CGL 16 Aug 2015 Shift 1 Paper

Question : 115 of 200

Marks: +1, -0

The average marks obtained by a student in 6 subjects is 88. On subsequent verification it was found that the marks obtained by him in a subject was wrongly copied as 86 instead of 68. The correct average of the marks obtained by him is

Validate

Solution:

Correct sum of marks obtained by the student
= 88 × 6 – 86 + 68
= 528 – 86 + 68 = 510
∴ Correct average =

{510}/6

= 85

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