#27 1/2%# of what number of people is #11# people?

1 Answer
Tony B
Mar 8, 2016

The count of all people is 40

Explanation:

Write #27 1/2%# as #27.5/100 #

I much prefer to work in whole numbers if I can

#27.5/100 = (27.5xx2)/(100xx2)=55/200#

Let the total count of people be #x#

Then:#" "55/200xx x =11 #

#=>x=11xx200/55 = 40 #

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