The mean of 5 number is 20. If one of the number is taken out from these numbers, then the mean of remaining numbers become 23. what will be the number taken out?
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the mean of 5 number is 20
the 5 numbers total is 100
the mean of 4 number is 23
the total 4 number is 92
remain number is 100-92= 8
the 5 numbers total is 100
the mean of 4 number is 23
the total 4 number is 92
remain number is 100-92= 8
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