Question

the mean of 10 nos is 20 , if 5 is subtracted from each no find the new mean

Answer 1

HEY buddy.....!!! here is ur answer

Given that the mean of 10 no. is 20 then their sum will be 10×20 = 200

If the 5 subtracted from each other it mean subtracted 10×5 = 50 from the total which is 200 = 200 - 50 = 150

Now the total remained 150

So, the new mean of the numbers = 150/10

=> 15 <<<Ans.

I hope it will be helpful for you...!!

THANK YOU ✌️✌️

Answer 2

Answer:

15

Step-by-step explanation:

Mean : The value obtained after dividing the sum of quantities by the number of quantities is known as the mean. It is also known as an average.

Also, Mean = Sum of Quantities/ Number of Quantities.

Given, the mean of 10 numbers is 20.

Then, their sum will be 20 x 10.

Sum = 200

Now, if 5 is subtracted from each number, then, the new sum will be :-    200 - ( 10 x 5 )

= 200 - 50

= 150

Now, the new mean will be 150/10 ( Since, Mean = Sum of Quantities/ Number of Quantities. )

Therefore, the new mean will be 15.

Hope it Helps!