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Mean of 5 numbers is 18. If one number minus then mean is 16 find the minus number |
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Answer» Mean =X = 18No of observations = 5 Sum of observations = = 18 x 5 = 90Let the excluded number be xNew Mean X\' = 16New number of observations = 4New sum of observations = 16 x 4 = 64 which is equal to 90 - x Thus x= 90 - 64 = 26 The minus no. Is 26 |
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