Question

ou the
correct mean.
9. The mean of 24 numbers is 35. If 3 is added to each number, what will
be the new mean?​

Answer 1

Step-by-step explanation:

Let the sum of 24 numbers be x.

We know that mean of A(n) numbers, = A1+A2+A3....An/n

Therefore, ATQ

x/24 = 35

=> x = 840....(I)

Now adding 3 to each number, the new equation becomes

= x + 24(3)

_______

24

= x+72/24.....(ii)

But, by (i),

x = 840....

Therefore, substituting the value of x from (i) in (ii)

=> 840+72/24

=> 38.

Therefore, new Arithmetic Mean of the numbers will be 38.... ANSWER.

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