Question

The mean of five numbers is 10

I add one more number and the mean is now 11
What number did i add?

Answer 1

mean of 5 numbers = 10

mean of 6 numbers = 11

therefore, mean= 7 + 13 + 6 + 14 + 10 = 50 = 10

5 5

if one more number make it 11, then

2x=10

2 2

x=5

Answer 2

Good morning ☕️______

Answer:

=16

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Explanation:

`(a+b+c+d+e)/(5) = 10`

then ,

a+b+c+d+e = 50

Now, if we add a new number and call it f we will get:

`(a+b+c+d+e+f)/(6) =11`

then,

(a+b+c+d+e) + f = 66

then f=66-(a+b+c+d+e) = 66-50=16.

:)