Question

the mean of 12 number is 40 if each number is divided by 8 what will be the mean of new number
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Answer 1

Answer:

The new mean is 5 after dividing each number by 8.

Step-by-step explanation:

The mean of 12 number is 40.

So,

      $Mean=\frac{Sum}{12}\\ \\ Sum=Mean \cdot 40=12 \cdot 40=480$

Sum of all the number $=480$

each number is divided by 8,

Then

          Sum will be =$\frac{480}{8}=60$

New mean will be =$\frac{60}{12} =5$