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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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
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
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bol na ata
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