mean of 9 numbers is 85.if one more is added,then the mean increases by 3 . find the number added in data
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mean of 9 no=85
sum of 9 no.=85×9=765
after adding one more no.,
mean =88
sum of 10 no.=88×10=880
no. added=880-765
=115
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sum of 9 no.=85×9=765
after adding one more no.,
mean =88
sum of 10 no.=88×10=880
no. added=880-765
=115
HOPE IT WILL HELP YOU. .....
PLEASE MARK AS BRAINLIEST
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