Question

MEAN of nine no.is 77 .If one more no.is added to it then the mean. increases by 5 .find The no.added in the data ..

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Answer 1

Answer:

Mean  =  ∑fixi/∑fi

77 = ∑fixi/9

∑fixi = 693

693 + x / 10 = 82

x = 800 - 693

x =107

Step-by-step explanation:

Answer 2

hi friend here is your answer

*693*×"10"=*82*

x-variable = 800---{693}

x-variable =109

your answer =109

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