the average of 11 observations is 60. if the average of first five observation is 58 and that of the last five is 56, then the sixth observation is
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sum of 11 observation =60×11=660
sum of 5 observation =5×58=290
sum of last 5 observation =5×56=280
290 +280=570
660-570=90
6th observation is 90
sum of 5 observation =5×58=290
sum of last 5 observation =5×56=280
290 +280=570
660-570=90
6th observation is 90
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Answer:
6th Observation is 90
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