Question

In a survey, 221people said theyhave cable TV. Thisrepresents 65% of thepeople surveyed.How many peoplewere surveyed?

Answer 1

1) Gathering the data

221 people = 65%

2) To find the 100% people surveyed let's set a direct proportion. And then cross multiply to have an equation:

% people

65-----------221

100-------- y

65y = 22100 Dividing both sides by 65

y =340

So, 340 people were surveyed.