The mean of 10 numbers is 20.if 5 is subtracted from every number.what will be the new mean?
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Answered by
47
let the total num be x
so x\10=20
x=200
5 is subtracted frm 10 numbrs so total 50
200-50/10=new mean
=150/10
=15
so x\10=20
x=200
5 is subtracted frm 10 numbrs so total 50
200-50/10=new mean
=150/10
=15
Answered by
22
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