Question

Average of 6 numbers 8. One new number added and average become 10 which is the new number?​

Answer 1

Answer:

Here you go!!!

Step-by-step explanation:

first finding the average of 6 and 8,

,I.e, =(6+8)/2

=7

So, 7 is the average of 6 and 8.

Now, according to question,

7+x=10

So, here x=10-7

x=3

the new number which is to be added in the average of 6 and 8 to get answer as 10 is 3.

Hope this helps!!!!

Answer 2

Answer:

Step-by-step explanation:

If the average of 6 numbers is 8, their total is 6x8 = 48. To see why, recall that the average (mean) of a set of n numbers is t/n, where t is the total (sum) of the numbers. So if a is the average, we have:

a=t/n.

So t= a*n = 6x8 = 48

Upon addition of the new number to the set, n is increased to 7 and a is decreased to 7. So now:

t = a*n = 7x7= 49

So the addition of the new number to the set has increased the total by 1 (from 48 to 49).

So the new number is 1