The mean of 99 items is 55. The value of 100th item is 99 more than the mean of 100 items. What is the value of 100th item .
Ans. X100=155
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The mean of 99 items is 55. The value of 100th item is 99 more than the mean of 100 items. What is the value of 100th item .
Ans. X100=155
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