Question

hi
I will Mark as brain list

the mean of 5 numbers is 10.2. The mean of 4 of these numbers is 10. find the fifth number .
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Answer 1

hi mate your answer

let the fifth number be x

the mean of the 5 numbers is 10.2

the mean of four numbers is 10

the sum of 5 numbers=10.2×5

= 51

the sum of 4 numbers= 10×4

=40

x=51-40

x=11

the fifth number is 11

hope that it will help you