Symbiosis National Aptitude Test SNAP 2013 Paper

Question : 14 of 150

Marks: +1, -0

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?

56.5
59
57.5
None of these

Validate

Solution:

Correct average
=

{(24×56)+(48+59+67)-(44+45+61)}/{24}

{1344+174-150}/{24}

{1368}/{24}

= 57

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