Question

7 The average of 12 numbers is 16. While
calculating the average a number 23 is
taken as 32 by mistake. Find the correct
average.
s: A.
12.5
B.
10.25​

Answer 1

Answer:

12.5

Step-by-step explanation:

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Answer 2

Answer:

Correct average is 15.25

Step-by-step explanation:

Given data

Average of 12 numbers is 16

while calculating average a number 23 is taken as 32 by mistake

⇒ we know that Average of set of numbers

                           = sum of the numbers / number of numbers

⇒ the average of 12 numbers, 16 = sum of the numbers/ 12

⇒ sum of the numbers = 12 ×16 =  192

⇒ here 23 is taken as 32      

⇒ subtract 32 and add 23 to sum of the numbers

⇒  192 - 32 +23  =  183

⇒ correct average  = 183/12 =  15.25