Question

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The mean of 6 numbers is 42.
If one number is excluded , the mean of remaining numbers is 45.
Find the excluded number.......




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Answer 1

$Bonjour$

Mean of 6 numbers = 42

Sum of 6 numbers = 42×6

= 252

If one no. Is excluded

Mean of 5 numbers = 45

Sum of 5 numbers = 45×5

= 225

Excluded no. = 252-225

= 27 Answer

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