BA LLB Banaras Hindu University 2017 Solved Paper

Question : 116 of 170

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The average of 20 numbers is calculated as 35. It is discovered later, that while calculating the average, one number, namely 85, was read as

45 .

The correct average is :

Solution:

Effect in average

=\;{85-45}/{20}=2

Correct average

=35+2=37

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