Math, asked by Devil0, 1 year ago

mean of 10 numbers is 55 if one number is excluded and mean become 50 find the excluded number

Answers

Answered by Dachynna
124
 average(mean)=sum of data/ number of data

sum of data= average x (number of data-1)              y is -1 bcoz one data is excluded
Given, mean=55, No of data= 10
Now, 55x10=50(10-1) +a         a is excluded data
550=450 + a
a=100



Answered by riyachaudhary49
21
the excluded number is 100
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